2081980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2539}}^1$

素因数の和:2589

約数の個数: 24

約数和(自身を含む): 4480560

約数和(自身を除く): 2398580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2539, 5078, 10156, 12695, 25390, 50780, 104099, 208198, 416396, 520495, 1040990, 2081980]

約数ペア:

[(1, 2081980), (2, 1040990), (4, 520495), (5, 416396), (10, 208198), (20, 104099), (41, 50780), (82, 25390), (164, 12695), (205, 10156), (410, 5078), (820, 2539)]