2571920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2473}}^1$

素因数の和:2499

約数の個数: 40

約数和(自身を含む): 6442296

約数和(自身を除く): 3870376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2473, 4946, 9892, 12365, 19784, 24730, 32149, 39568, 49460, 64298, 98920, 128596, 160745, 197840, 257192, 321490, 514384, 642980, 1285960, 2571920]

約数ペア:

[(1, 2571920), (2, 1285960), (4, 642980), (5, 514384), (8, 321490), (10, 257192), (13, 197840), (16, 160745), (20, 128596), (26, 98920), (40, 64298), (52, 49460), (65, 39568), (80, 32149), (104, 24730), (130, 19784), (208, 12365), (260, 9892), (520, 4946), (1040, 2473)]