20989571010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{98807}}^1$

素因数の和:98987

約数の個数: 64

約数和(自身を含む): 51592004352

約数和(自身を除く): 30602433342

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 97, 146, 194, 219, 291, 365, 438, 485, 582, 730, 970, 1095, 1455, 2190, 2910, 7081, 14162, 21243, 35405, 42486, 70810, 98807, 106215, 197614, 212430, 296421, 494035, 592842, 988070, 1482105, 2964210, 7212911, 9584279, 14425822, 19168558, 21638733, 28752837, 36064555, 43277466, 47921395, 57505674, 72129110, 95842790, 108193665, 143764185, 216387330, 287528370, 699652367, 1399304734, 2098957101, 3498261835, 4197914202, 6996523670, 10494785505, 20989571010]

約数ペア:

[(1, 20989571010), (2, 10494785505), (3, 6996523670), (5, 4197914202), (6, 3498261835), (10, 2098957101), (15, 1399304734), (30, 699652367), (73, 287528370), (97, 216387330), (146, 143764185), (194, 108193665), (219, 95842790), (291, 72129110), (365, 57505674), (438, 47921395), (485, 43277466), (582, 36064555), (730, 28752837), (970, 21638733), (1095, 19168558), (1455, 14425822), (2190, 9584279), (2910, 7212911), (7081, 2964210), (14162, 1482105), (21243, 988070), (35405, 592842), (42486, 494035), (70810, 296421), (98807, 212430), (106215, 197614)]