20899374160

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:455

約数の個数: 320

約数和(自身を含む): 59424768000

約数和(自身を除く): 38525393840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 79, 80, 98, 112, 124, 140, 155, 158, 196, 217, 245, 248, 280, 310, 311, 316, 343, 392, 395, 434, 490, 496, 553, 560, 620, 622, 632, 686, 784, 790, 868, 980, 1085, 1106, 1240, 1244, 1264, 1372, 1519, 1555, 1580, 1715, 1736, 1960, 2170, 2177, 2212, 2449, 2480, 2488, 2744, 2765, 3038, 3110, 3160, 3430, 3472, 3871, 3920, 4340, 4354, 4424, 4898, 4976, 5488, 5530, 6076, 6220, 6320, 6860, 7595, 7742, 8680, 8708, 8848, 9641, 9796, 10633, 10885, 11060, 12152, 12245, 12440, 13720, 15190, 15239, 15484, 17143, 17360, 17416, 19282, 19355, 19592, 21266, 21770, 22120, 24304, 24490, 24569, 24880, 27097, 27440, 30380, 30478, 30968, 34286, 34832, 38564, 38710, 39184, 42532, 43540, 44240, 48205, 48980, 49138, 53165, 54194, 60760, 60956, 61936, 67487, 68572, 76195, 77128, 77420, 85064, 85715, 87080, 96410, 97960, 98276, 106330, 106673, 108388, 120001, 121520, 121912, 122845, 134974, 135485, 137144, 152390, 154256, 154840, 170128, 171430, 171983, 174160, 192820, 195920, 196552, 212660, 213346, 216776, 240002, 243824, 245690, 269948, 270970, 274288, 304780, 309680, 337435, 342860, 343966, 385640, 393104, 425320, 426692, 433552, 472409, 480004, 491380, 533365, 539896, 541940, 600005, 609560, 674870, 685720, 687932, 761639, 771280, 840007, 850640, 853384, 859915, 944818, 960008, 982760, 1066730, 1079792, 1083880, 1200010, 1203881, 1219120, 1349740, 1371440, 1375864, 1523278, 1680014, 1706768, 1719830, 1889636, 1920016, 1965520, 2133460, 2167760, 2362045, 2400020, 2407762, 2699480, 2751728, 3046556, 3306863, 3360028, 3439660, 3779272, 3808195, 4200035, 4266920, 4724090, 4800040, 4815524, 5331473, 5398960, 6019405, 6093112, 6613726, 6720056, 6879320, 7558544, 7616390, 8400070, 8427167, 8533840, 9448180, 9600080, 9631048, 10662946, 12038810, 12186224, 13227452, 13440112, 13758640, 15232780, 16534315, 16800140, 16854334, 18896360, 19262096, 21325892, 24077620, 26454904, 26657365, 30465560, 33068630, 33600280, 33708668, 37320311, 37792720, 42135835, 42651784, 48155240, 52909808, 53314730, 60931120, 66137260, 67200560, 67417336, 74640622, 84271670, 85303568, 96310480, 106629460, 132274520, 134834672, 149281244, 168543340, 186601555, 213258920, 261242177, 264549040, 298562488, 337086680, 373203110, 426517840, 522484354, 597124976, 674173360, 746406220, 1044968708, 1306210885, 1492812440, 2089937416, 2612421770, 2985624880, 4179874832, 5224843540, 10449687080, 20899374160]

約数ペア:

[(1, 20899374160), (2, 10449687080), (4, 5224843540), (5, 4179874832), (7, 2985624880), (8, 2612421770), (10, 2089937416), (14, 1492812440), (16, 1306210885), (20, 1044968708), (28, 746406220), (31, 674173360), (35, 597124976), (40, 522484354), (49, 426517840), (56, 373203110), (62, 337086680), (70, 298562488), (79, 264549040), (80, 261242177), (98, 213258920), (112, 186601555), (124, 168543340), (140, 149281244), (155, 134834672), (158, 132274520), (196, 106629460), (217, 96310480), (245, 85303568), (248, 84271670), (280, 74640622), (310, 67417336), (311, 67200560), (316, 66137260), (343, 60931120), (392, 53314730), (395, 52909808), (434, 48155240), (490, 42651784), (496, 42135835), (553, 37792720), (560, 37320311), (620, 33708668), (622, 33600280), (632, 33068630), (686, 30465560), (784, 26657365), (790, 26454904), (868, 24077620), (980, 21325892), (1085, 19262096), (1106, 18896360), (1240, 16854334), (1244, 16800140), (1264, 16534315), (1372, 15232780), (1519, 13758640), (1555, 13440112), (1580, 13227452), (1715, 12186224), (1736, 12038810), (1960, 10662946), (2170, 9631048), (2177, 9600080), (2212, 9448180), (2449, 8533840), (2480, 8427167), (2488, 8400070), (2744, 7616390), (2765, 7558544), (3038, 6879320), (3110, 6720056), (3160, 6613726), (3430, 6093112), (3472, 6019405), (3871, 5398960), (3920, 5331473), (4340, 4815524), (4354, 4800040), (4424, 4724090), (4898, 4266920), (4976, 4200035), (5488, 3808195), (5530, 3779272), (6076, 3439660), (6220, 3360028), (6320, 3306863), (6860, 3046556), (7595, 2751728), (7742, 2699480), (8680, 2407762), (8708, 2400020), (8848, 2362045), (9641, 2167760), (9796, 2133460), (10633, 1965520), (10885, 1920016), (11060, 1889636), (12152, 1719830), (12245, 1706768), (12440, 1680014), (13720, 1523278), (15190, 1375864), (15239, 1371440), (15484, 1349740), (17143, 1219120), (17360, 1203881), (17416, 1200010), (19282, 1083880), (19355, 1079792), (19592, 1066730), (21266, 982760), (21770, 960008), (22120, 944818), (24304, 859915), (24490, 853384), (24569, 850640), (24880, 840007), (27097, 771280), (27440, 761639), (30380, 687932), (30478, 685720), (30968, 674870), (34286, 609560), (34832, 600005), (38564, 541940), (38710, 539896), (39184, 533365), (42532, 491380), (43540, 480004), (44240, 472409), (48205, 433552), (48980, 426692), (49138, 425320), (53165, 393104), (54194, 385640), (60760, 343966), (60956, 342860), (61936, 337435), (67487, 309680), (68572, 304780), (76195, 274288), (77128, 270970), (77420, 269948), (85064, 245690), (85715, 243824), (87080, 240002), (96410, 216776), (97960, 213346), (98276, 212660), (106330, 196552), (106673, 195920), (108388, 192820), (120001, 174160), (121520, 171983), (121912, 171430), (122845, 170128), (134974, 154840), (135485, 154256), (137144, 152390)]