427980400

素因数分解:

$2^4\times 5^2\times {\mathrm{1069951}}^1$

素因数の和:1069969

約数の個数: 30

約数和(自身を含む): 1028223872

約数和(自身を除く): 600243472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1069951, 2139902, 4279804, 5349755, 8559608, 10699510, 17119216, 21399020, 26748775, 42798040, 53497550, 85596080, 106995100, 213990200, 427980400]

約数ペア:

[(1, 427980400), (2, 213990200), (4, 106995100), (5, 85596080), (8, 53497550), (10, 42798040), (16, 26748775), (20, 21399020), (25, 17119216), (40, 10699510), (50, 8559608), (80, 5349755), (100, 4279804), (200, 2139902), (400, 1069951)]