20945156940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1\times {\mathrm{7499}}^1$

素因数の和:7836

約数の個数: 144

約数和(自身を含む): 64864800000

約数和(自身を除く): 43919643060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 263, 295, 354, 526, 531, 590, 708, 789, 885, 1052, 1062, 1180, 1315, 1578, 1770, 2124, 2367, 2630, 2655, 3156, 3540, 3945, 4734, 5260, 5310, 7499, 7890, 9468, 10620, 11835, 14998, 15517, 15780, 22497, 23670, 29996, 31034, 37495, 44994, 46551, 47340, 62068, 67491, 74990, 77585, 89988, 93102, 112485, 134982, 139653, 149980, 155170, 186204, 224970, 232755, 269964, 279306, 310340, 337455, 442441, 449940, 465510, 558612, 674910, 698265, 884882, 931020, 1327323, 1349820, 1396530, 1769764, 1972237, 2212205, 2654646, 2793060, 3944474, 3981969, 4424410, 5309292, 5916711, 6636615, 7888948, 7963938, 8848820, 9861185, 11833422, 13273230, 15927876, 17750133, 19722370, 19909845, 23666844, 26546460, 29583555, 35500266, 39444740, 39819690, 59167110, 71000532, 79639380, 88750665, 116361983, 118334220, 177501330, 232723966, 349085949, 355002660, 465447932, 581809915, 698171898, 1047257847, 1163619830, 1396343796, 1745429745, 2094515694, 2327239660, 3490859490, 4189031388, 5236289235, 6981718980, 10472578470, 20945156940]

約数ペア:

[(1, 20945156940), (2, 10472578470), (3, 6981718980), (4, 5236289235), (5, 4189031388), (6, 3490859490), (9, 2327239660), (10, 2094515694), (12, 1745429745), (15, 1396343796), (18, 1163619830), (20, 1047257847), (30, 698171898), (36, 581809915), (45, 465447932), (59, 355002660), (60, 349085949), (90, 232723966), (118, 177501330), (177, 118334220), (180, 116361983), (236, 88750665), (263, 79639380), (295, 71000532), (354, 59167110), (526, 39819690), (531, 39444740), (590, 35500266), (708, 29583555), (789, 26546460), (885, 23666844), (1052, 19909845), (1062, 19722370), (1180, 17750133), (1315, 15927876), (1578, 13273230), (1770, 11833422), (2124, 9861185), (2367, 8848820), (2630, 7963938), (2655, 7888948), (3156, 6636615), (3540, 5916711), (3945, 5309292), (4734, 4424410), (5260, 3981969), (5310, 3944474), (7499, 2793060), (7890, 2654646), (9468, 2212205), (10620, 1972237), (11835, 1769764), (14998, 1396530), (15517, 1349820), (15780, 1327323), (22497, 931020), (23670, 884882), (29996, 698265), (31034, 674910), (37495, 558612), (44994, 465510), (46551, 449940), (47340, 442441), (62068, 337455), (67491, 310340), (74990, 279306), (77585, 269964), (89988, 232755), (93102, 224970), (112485, 186204), (134982, 155170), (139653, 149980)]