19968679920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{5531}}^1$

素因数の和:5868

約数の個数: 240

約数和(自身を含む): 72257125248

約数和(自身を除く): 52288445328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 307, 336, 392, 420, 490, 560, 588, 614, 735, 784, 840, 921, 980, 1176, 1228, 1470, 1535, 1680, 1842, 1960, 2149, 2352, 2456, 2940, 3070, 3684, 3920, 4298, 4605, 4912, 5531, 5880, 6140, 6447, 7368, 8596, 9210, 10745, 11062, 11760, 12280, 12894, 14736, 15043, 16593, 17192, 18420, 21490, 22124, 24560, 25788, 27655, 30086, 32235, 33186, 34384, 36840, 38717, 42980, 44248, 45129, 51576, 55310, 60172, 64470, 66372, 73680, 75215, 77434, 82965, 85960, 88496, 90258, 103152, 110620, 116151, 120344, 128940, 132744, 150430, 154868, 165930, 171920, 180516, 193585, 221240, 225645, 232302, 240688, 257880, 265488, 271019, 300860, 309736, 331860, 361032, 387170, 442480, 451290, 464604, 515760, 542038, 580755, 601720, 619472, 663720, 722064, 774340, 813057, 902580, 929208, 1084076, 1161510, 1203440, 1327440, 1355095, 1548680, 1626114, 1698017, 1805160, 1858416, 2168152, 2323020, 2710190, 3097360, 3252228, 3396034, 3610320, 4065285, 4336304, 4646040, 5094051, 5420380, 6504456, 6792068, 8130570, 8490085, 9292080, 10188102, 10840760, 11886119, 13008912, 13584136, 16261140, 16980170, 20376204, 21681520, 23772238, 25470255, 27168272, 32522280, 33960340, 35658357, 40752408, 47544476, 50940510, 59430595, 65044560, 67920680, 71316714, 81504816, 83202833, 95088952, 101881020, 118861190, 135841360, 142633428, 166405666, 178291785, 190177904, 203762040, 237722380, 249608499, 285266856, 332811332, 356583570, 407524080, 416014165, 475444760, 499216998, 570533712, 665622664, 713167140, 832028330, 950889520, 998433996, 1248042495, 1331245328, 1426334280, 1664056660, 1996867992, 2496084990, 2852668560, 3328113320, 3993735984, 4992169980, 6656226640, 9984339960, 19968679920]

約数ペア:

[(1, 19968679920), (2, 9984339960), (3, 6656226640), (4, 4992169980), (5, 3993735984), (6, 3328113320), (7, 2852668560), (8, 2496084990), (10, 1996867992), (12, 1664056660), (14, 1426334280), (15, 1331245328), (16, 1248042495), (20, 998433996), (21, 950889520), (24, 832028330), (28, 713167140), (30, 665622664), (35, 570533712), (40, 499216998), (42, 475444760), (48, 416014165), (49, 407524080), (56, 356583570), (60, 332811332), (70, 285266856), (80, 249608499), (84, 237722380), (98, 203762040), (105, 190177904), (112, 178291785), (120, 166405666), (140, 142633428), (147, 135841360), (168, 118861190), (196, 101881020), (210, 95088952), (240, 83202833), (245, 81504816), (280, 71316714), (294, 67920680), (307, 65044560), (336, 59430595), (392, 50940510), (420, 47544476), (490, 40752408), (560, 35658357), (588, 33960340), (614, 32522280), (735, 27168272), (784, 25470255), (840, 23772238), (921, 21681520), (980, 20376204), (1176, 16980170), (1228, 16261140), (1470, 13584136), (1535, 13008912), (1680, 11886119), (1842, 10840760), (1960, 10188102), (2149, 9292080), (2352, 8490085), (2456, 8130570), (2940, 6792068), (3070, 6504456), (3684, 5420380), (3920, 5094051), (4298, 4646040), (4605, 4336304), (4912, 4065285), (5531, 3610320), (5880, 3396034), (6140, 3252228), (6447, 3097360), (7368, 2710190), (8596, 2323020), (9210, 2168152), (10745, 1858416), (11062, 1805160), (11760, 1698017), (12280, 1626114), (12894, 1548680), (14736, 1355095), (15043, 1327440), (16593, 1203440), (17192, 1161510), (18420, 1084076), (21490, 929208), (22124, 902580), (24560, 813057), (25788, 774340), (27655, 722064), (30086, 663720), (32235, 619472), (33186, 601720), (34384, 580755), (36840, 542038), (38717, 515760), (42980, 464604), (44248, 451290), (45129, 442480), (51576, 387170), (55310, 361032), (60172, 331860), (64470, 309736), (66372, 300860), (73680, 271019), (75215, 265488), (77434, 257880), (82965, 240688), (85960, 232302), (88496, 225645), (90258, 221240), (103152, 193585), (110620, 180516), (116151, 171920), (120344, 165930), (128940, 154868), (132744, 150430)]