39927640

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2371}}^1$

素因数の和:2803

約数の個数: 32

約数和(自身を含む): 90088560

約数和(自身を除く): 50160920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 2371, 3368, 4210, 4742, 8420, 9484, 11855, 16840, 18968, 23710, 47420, 94840, 998191, 1996382, 3992764, 4990955, 7985528, 9981910, 19963820, 39927640]

約数ペア:

[(1, 39927640), (2, 19963820), (4, 9981910), (5, 7985528), (8, 4990955), (10, 3992764), (20, 1996382), (40, 998191), (421, 94840), (842, 47420), (1684, 23710), (2105, 18968), (2371, 16840), (3368, 11855), (4210, 9484), (4742, 8420)]