81121587560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1\times {\mathrm{269}}^1$

素因数の和:676

約数の個数: 256

約数和(自身を含む): 210161952000

約数和(自身を除く): 129040364440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 131, 152, 190, 233, 247, 260, 262, 269, 380, 466, 494, 520, 524, 538, 655, 760, 932, 988, 1048, 1076, 1165, 1235, 1310, 1345, 1703, 1864, 1976, 2152, 2330, 2470, 2489, 2620, 2690, 3029, 3406, 3497, 4427, 4660, 4940, 4978, 5111, 5240, 5380, 6058, 6812, 6994, 8515, 8854, 9320, 9880, 9956, 10222, 10760, 12116, 12445, 13624, 13988, 15145, 17030, 17485, 17708, 19912, 20444, 22135, 24232, 24890, 25555, 27976, 30290, 30523, 32357, 34060, 34970, 35239, 35416, 40888, 44270, 49780, 51110, 57551, 60580, 61046, 62677, 64714, 66443, 68120, 69940, 70478, 88540, 99560, 102220, 115102, 121160, 122092, 125354, 129428, 132886, 139880, 140956, 152615, 161785, 176195, 177080, 204440, 230204, 244184, 250708, 258856, 265772, 281912, 287755, 305230, 313385, 323570, 332215, 352390, 396799, 458107, 460408, 501416, 531544, 575510, 579937, 610460, 626770, 647140, 664430, 669541, 704780, 793598, 814801, 916214, 1151020, 1159874, 1190863, 1220920, 1253540, 1294280, 1328860, 1339082, 1409560, 1587196, 1629602, 1832428, 1983995, 2290535, 2302040, 2319748, 2381726, 2507080, 2657720, 2678164, 2899685, 3174392, 3259204, 3347705, 3664856, 3967990, 4074005, 4581070, 4639496, 4763452, 5356328, 5799370, 5954315, 6518408, 6695410, 7539181, 7935980, 8148010, 8210687, 8704033, 9162140, 9526904, 11598740, 11908630, 13390820, 15078362, 15481219, 15871960, 16296020, 16421374, 17408066, 18324280, 23197480, 23817260, 26781640, 30156724, 30962438, 32592040, 32842748, 34816132, 37695905, 41053435, 43520165, 47634520, 60313448, 61924876, 65685496, 69632264, 75391810, 77406095, 82106870, 87040330, 106738931, 123849752, 150783620, 154812190, 156003053, 164213740, 174080660, 213477862, 301567240, 309624380, 312006106, 328427480, 348161320, 426955724, 533694655, 619248760, 624012212, 780015265, 853911448, 1067389310, 1248024424, 1560030530, 2028039689, 2134778620, 3120061060, 4056079378, 4269557240, 6240122120, 8112158756, 10140198445, 16224317512, 20280396890, 40560793780, 81121587560]

約数ペア:

[(1, 81121587560), (2, 40560793780), (4, 20280396890), (5, 16224317512), (8, 10140198445), (10, 8112158756), (13, 6240122120), (19, 4269557240), (20, 4056079378), (26, 3120061060), (38, 2134778620), (40, 2028039689), (52, 1560030530), (65, 1248024424), (76, 1067389310), (95, 853911448), (104, 780015265), (130, 624012212), (131, 619248760), (152, 533694655), (190, 426955724), (233, 348161320), (247, 328427480), (260, 312006106), (262, 309624380), (269, 301567240), (380, 213477862), (466, 174080660), (494, 164213740), (520, 156003053), (524, 154812190), (538, 150783620), (655, 123849752), (760, 106738931), (932, 87040330), (988, 82106870), (1048, 77406095), (1076, 75391810), (1165, 69632264), (1235, 65685496), (1310, 61924876), (1345, 60313448), (1703, 47634520), (1864, 43520165), (1976, 41053435), (2152, 37695905), (2330, 34816132), (2470, 32842748), (2489, 32592040), (2620, 30962438), (2690, 30156724), (3029, 26781640), (3406, 23817260), (3497, 23197480), (4427, 18324280), (4660, 17408066), (4940, 16421374), (4978, 16296020), (5111, 15871960), (5240, 15481219), (5380, 15078362), (6058, 13390820), (6812, 11908630), (6994, 11598740), (8515, 9526904), (8854, 9162140), (9320, 8704033), (9880, 8210687), (9956, 8148010), (10222, 7935980), (10760, 7539181), (12116, 6695410), (12445, 6518408), (13624, 5954315), (13988, 5799370), (15145, 5356328), (17030, 4763452), (17485, 4639496), (17708, 4581070), (19912, 4074005), (20444, 3967990), (22135, 3664856), (24232, 3347705), (24890, 3259204), (25555, 3174392), (27976, 2899685), (30290, 2678164), (30523, 2657720), (32357, 2507080), (34060, 2381726), (34970, 2319748), (35239, 2302040), (35416, 2290535), (40888, 1983995), (44270, 1832428), (49780, 1629602), (51110, 1587196), (57551, 1409560), (60580, 1339082), (61046, 1328860), (62677, 1294280), (64714, 1253540), (66443, 1220920), (68120, 1190863), (69940, 1159874), (70478, 1151020), (88540, 916214), (99560, 814801), (102220, 793598), (115102, 704780), (121160, 669541), (122092, 664430), (125354, 647140), (129428, 626770), (132886, 610460), (139880, 579937), (140956, 575510), (152615, 531544), (161785, 501416), (176195, 460408), (177080, 458107), (204440, 396799), (230204, 352390), (244184, 332215), (250708, 323570), (258856, 313385), (265772, 305230), (281912, 287755)]