28721160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:85

約数の個数: 288

約数和(自身を含む): 112334040

約数和(自身を除く): 83612880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 19, 20, 24, 26, 30, 34, 36, 38, 39, 40, 45, 51, 52, 57, 60, 65, 68, 72, 76, 78, 85, 90, 95, 102, 104, 114, 117, 120, 130, 136, 152, 153, 156, 170, 171, 180, 190, 195, 204, 221, 228, 234, 247, 255, 260, 285, 306, 312, 323, 340, 342, 360, 361, 380, 390, 408, 442, 456, 468, 494, 510, 520, 570, 585, 612, 646, 663, 680, 684, 722, 741, 760, 765, 780, 855, 884, 936, 969, 988, 1020, 1083, 1105, 1140, 1170, 1224, 1235, 1292, 1326, 1368, 1444, 1482, 1530, 1560, 1615, 1710, 1768, 1805, 1938, 1976, 1989, 2040, 2166, 2210, 2223, 2280, 2340, 2470, 2584, 2652, 2888, 2907, 2964, 3060, 3230, 3249, 3315, 3420, 3610, 3705, 3876, 3978, 4199, 4332, 4420, 4446, 4680, 4693, 4845, 4940, 5304, 5415, 5814, 5928, 6120, 6137, 6460, 6498, 6630, 6840, 7220, 7410, 7752, 7956, 8398, 8664, 8840, 8892, 9386, 9690, 9880, 9945, 10830, 11115, 11628, 12274, 12597, 12920, 12996, 13260, 14079, 14440, 14535, 14820, 15912, 16245, 16796, 17784, 18411, 18772, 19380, 19890, 20995, 21660, 22230, 23256, 23465, 24548, 25194, 25992, 26520, 28158, 29070, 29640, 30685, 32490, 33592, 36822, 37544, 37791, 38760, 39780, 41990, 42237, 43320, 44460, 46930, 49096, 50388, 55233, 56316, 58140, 61370, 62985, 64980, 70395, 73644, 75582, 79560, 79781, 83980, 84474, 88920, 92055, 93860, 100776, 110466, 112632, 116280, 122740, 125970, 129960, 140790, 147288, 151164, 159562, 167960, 168948, 184110, 187720, 188955, 211185, 220932, 239343, 245480, 251940, 276165, 281580, 302328, 319124, 337896, 368220, 377910, 398905, 422370, 441864, 478686, 503880, 552330, 563160, 638248, 718029, 736440, 755820, 797810, 844740, 957372, 1104660, 1196715, 1436058, 1511640, 1595620, 1689480, 1914744, 2209320, 2393430, 2872116, 3191240, 3590145, 4786860, 5744232, 7180290, 9573720, 14360580, 28721160]

約数ペア:

[(1, 28721160), (2, 14360580), (3, 9573720), (4, 7180290), (5, 5744232), (6, 4786860), (8, 3590145), (9, 3191240), (10, 2872116), (12, 2393430), (13, 2209320), (15, 1914744), (17, 1689480), (18, 1595620), (19, 1511640), (20, 1436058), (24, 1196715), (26, 1104660), (30, 957372), (34, 844740), (36, 797810), (38, 755820), (39, 736440), (40, 718029), (45, 638248), (51, 563160), (52, 552330), (57, 503880), (60, 478686), (65, 441864), (68, 422370), (72, 398905), (76, 377910), (78, 368220), (85, 337896), (90, 319124), (95, 302328), (102, 281580), (104, 276165), (114, 251940), (117, 245480), (120, 239343), (130, 220932), (136, 211185), (152, 188955), (153, 187720), (156, 184110), (170, 168948), (171, 167960), (180, 159562), (190, 151164), (195, 147288), (204, 140790), (221, 129960), (228, 125970), (234, 122740), (247, 116280), (255, 112632), (260, 110466), (285, 100776), (306, 93860), (312, 92055), (323, 88920), (340, 84474), (342, 83980), (360, 79781), (361, 79560), (380, 75582), (390, 73644), (408, 70395), (442, 64980), (456, 62985), (468, 61370), (494, 58140), (510, 56316), (520, 55233), (570, 50388), (585, 49096), (612, 46930), (646, 44460), (663, 43320), (680, 42237), (684, 41990), (722, 39780), (741, 38760), (760, 37791), (765, 37544), (780, 36822), (855, 33592), (884, 32490), (936, 30685), (969, 29640), (988, 29070), (1020, 28158), (1083, 26520), (1105, 25992), (1140, 25194), (1170, 24548), (1224, 23465), (1235, 23256), (1292, 22230), (1326, 21660), (1368, 20995), (1444, 19890), (1482, 19380), (1530, 18772), (1560, 18411), (1615, 17784), (1710, 16796), (1768, 16245), (1805, 15912), (1938, 14820), (1976, 14535), (1989, 14440), (2040, 14079), (2166, 13260), (2210, 12996), (2223, 12920), (2280, 12597), (2340, 12274), (2470, 11628), (2584, 11115), (2652, 10830), (2888, 9945), (2907, 9880), (2964, 9690), (3060, 9386), (3230, 8892), (3249, 8840), (3315, 8664), (3420, 8398), (3610, 7956), (3705, 7752), (3876, 7410), (3978, 7220), (4199, 6840), (4332, 6630), (4420, 6498), (4446, 6460), (4680, 6137), (4693, 6120), (4845, 5928), (4940, 5814), (5304, 5415)]