100802500

素因数分解:

$2^2\times 5^4\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:746

約数の個数: 60

約数和(自身を含む): 224387548

約数和(自身を除く): 123585048

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 244, 250, 305, 500, 610, 625, 661, 1220, 1250, 1322, 1525, 2500, 2644, 3050, 3305, 6100, 6610, 7625, 13220, 15250, 16525, 30500, 33050, 38125, 40321, 66100, 76250, 80642, 82625, 152500, 161284, 165250, 201605, 330500, 403210, 413125, 806420, 826250, 1008025, 1652500, 2016050, 4032100, 5040125, 10080250, 20160500, 25200625, 50401250, 100802500]

約数ペア:

[(1, 100802500), (2, 50401250), (4, 25200625), (5, 20160500), (10, 10080250), (20, 5040125), (25, 4032100), (50, 2016050), (61, 1652500), (100, 1008025), (122, 826250), (125, 806420), (244, 413125), (250, 403210), (305, 330500), (500, 201605), (610, 165250), (625, 161284), (661, 152500), (1220, 82625), (1250, 80642), (1322, 76250), (1525, 66100), (2500, 40321), (2644, 38125), (3050, 33050), (3305, 30500), (6100, 16525), (6610, 15250), (7625, 13220)]