2080451920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{187091}}^1$

素因数の和:187243

約数の個数: 40

約数和(自身を含む): 4871875680

約数和(自身を除く): 2791423760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 187091, 374182, 748364, 935455, 1496728, 1870910, 2993456, 3741820, 7483640, 14967280, 26005649, 52011298, 104022596, 130028245, 208045192, 260056490, 416090384, 520112980, 1040225960, 2080451920]

約数ペア:

[(1, 2080451920), (2, 1040225960), (4, 520112980), (5, 416090384), (8, 260056490), (10, 208045192), (16, 130028245), (20, 104022596), (40, 52011298), (80, 26005649), (139, 14967280), (278, 7483640), (556, 3741820), (695, 2993456), (1112, 1870910), (1390, 1496728), (2224, 935455), (2780, 748364), (5560, 374182), (11120, 187091)]