20672600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7951}}^1$

素因数の和:7980

約数の個数: 48

約数和(自身を含む): 51767520

約数和(自身を除く): 31094920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7951, 15902, 31804, 39755, 63608, 79510, 103363, 159020, 198775, 206726, 318040, 397550, 413452, 516815, 795100, 826904, 1033630, 1590200, 2067260, 2584075, 4134520, 5168150, 10336300, 20672600]

約数ペア:

[(1, 20672600), (2, 10336300), (4, 5168150), (5, 4134520), (8, 2584075), (10, 2067260), (13, 1590200), (20, 1033630), (25, 826904), (26, 795100), (40, 516815), (50, 413452), (52, 397550), (65, 318040), (100, 206726), (104, 198775), (130, 159020), (200, 103363), (260, 79510), (325, 63608), (520, 39755), (650, 31804), (1300, 15902), (2600, 7951)]