20313250

素因数分解:

$2^1\times 5^3\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 38314224

約数和(自身を除く): 18000974

約数列:

[1, 2, 5, 10, 25, 50, 125, 193, 250, 386, 421, 842, 965, 1930, 2105, 4210, 4825, 9650, 10525, 21050, 24125, 48250, 52625, 81253, 105250, 162506, 406265, 812530, 2031325, 4062650, 10156625, 20313250]

約数ペア:

[(1, 20313250), (2, 10156625), (5, 4062650), (10, 2031325), (25, 812530), (50, 406265), (125, 162506), (193, 105250), (250, 81253), (386, 52625), (421, 48250), (842, 24125), (965, 21050), (1930, 10525), (2105, 9650), (4210, 4825)]