61818040

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2411}}^1$

素因数の和:3063

約数の個数: 32

約数和(自身を含む): 139365360

約数和(自身を除く): 77547320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2411, 2564, 3205, 4822, 5128, 6410, 9644, 12055, 12820, 19288, 24110, 25640, 48220, 96440, 1545451, 3090902, 6181804, 7727255, 12363608, 15454510, 30909020, 61818040]

約数ペア:

[(1, 61818040), (2, 30909020), (4, 15454510), (5, 12363608), (8, 7727255), (10, 6181804), (20, 3090902), (40, 1545451), (641, 96440), (1282, 48220), (2411, 25640), (2564, 24110), (3205, 19288), (4822, 12820), (5128, 12055), (6410, 9644)]