140260360

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{8329}}^1$

素因数の和:8761

約数の個数: 32

約数和(自身を含む): 316373400

約数和(自身を除く): 176113040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8329, 8420, 16658, 16840, 33316, 41645, 66632, 83290, 166580, 333160, 3506509, 7013018, 14026036, 17532545, 28052072, 35065090, 70130180, 140260360]

約数ペア:

[(1, 140260360), (2, 70130180), (4, 35065090), (5, 28052072), (8, 17532545), (10, 14026036), (20, 7013018), (40, 3506509), (421, 333160), (842, 166580), (1684, 83290), (2105, 66632), (3368, 41645), (4210, 33316), (8329, 16840), (8420, 16658)]