51227500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:716

約数の個数: 60

約数和(自身を含む): 115812928

約数和(自身を除く): 64585428

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 625, 661, 775, 1250, 1322, 1550, 2500, 2644, 3100, 3305, 3875, 6610, 7750, 13220, 15500, 16525, 19375, 20491, 33050, 38750, 40982, 66100, 77500, 81964, 82625, 102455, 165250, 204910, 330500, 409820, 413125, 512275, 826250, 1024550, 1652500, 2049100, 2561375, 5122750, 10245500, 12806875, 25613750, 51227500]

約数ペア:

[(1, 51227500), (2, 25613750), (4, 12806875), (5, 10245500), (10, 5122750), (20, 2561375), (25, 2049100), (31, 1652500), (50, 1024550), (62, 826250), (100, 512275), (124, 413125), (125, 409820), (155, 330500), (250, 204910), (310, 165250), (500, 102455), (620, 82625), (625, 81964), (661, 77500), (775, 66100), (1250, 40982), (1322, 38750), (1550, 33050), (2500, 20491), (2644, 19375), (3100, 16525), (3305, 15500), (3875, 13220), (6610, 7750)]