99807640

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{9941}}^1$

素因数の和:10203

約数の個数: 32

約数和(自身を含む): 225484560

約数和(自身を除く): 125676920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 9941, 10040, 19882, 39764, 49705, 79528, 99410, 198820, 397640, 2495191, 4990382, 9980764, 12475955, 19961528, 24951910, 49903820, 99807640]

約数ペア:

[(1, 99807640), (2, 49903820), (4, 24951910), (5, 19961528), (8, 12475955), (10, 9980764), (20, 4990382), (40, 2495191), (251, 397640), (502, 198820), (1004, 99410), (1255, 79528), (2008, 49705), (2510, 39764), (5020, 19882), (9941, 10040)]