99990500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{6451}}^1$

素因数の和:6501

約数の個数: 48

約数和(自身を含む): 225458688

約数和(自身を除く): 125468188

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1550, 3100, 3875, 6451, 7750, 12902, 15500, 25804, 32255, 64510, 129020, 161275, 199981, 322550, 399962, 645100, 799924, 806375, 999905, 1612750, 1999810, 3225500, 3999620, 4999525, 9999050, 19998100, 24997625, 49995250, 99990500]

約数ペア:

[(1, 99990500), (2, 49995250), (4, 24997625), (5, 19998100), (10, 9999050), (20, 4999525), (25, 3999620), (31, 3225500), (50, 1999810), (62, 1612750), (100, 999905), (124, 806375), (125, 799924), (155, 645100), (250, 399962), (310, 322550), (500, 199981), (620, 161275), (775, 129020), (1550, 64510), (3100, 32255), (3875, 25804), (6451, 15500), (7750, 12902)]