2040348040

素因数分解:

$2^3\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{39511}}^1$

素因数の和:40813

約数の個数: 32

約数和(自身を含む): 4594455360

約数和(自身を除く): 2554107320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1291, 2582, 5164, 6455, 10328, 12910, 25820, 39511, 51640, 79022, 158044, 197555, 316088, 395110, 790220, 1580440, 51008701, 102017402, 204034804, 255043505, 408069608, 510087010, 1020174020, 2040348040]

約数ペア:

[(1, 2040348040), (2, 1020174020), (4, 510087010), (5, 408069608), (8, 255043505), (10, 204034804), (20, 102017402), (40, 51008701), (1291, 1580440), (2582, 790220), (5164, 395110), (6455, 316088), (10328, 197555), (12910, 158044), (25820, 79022), (39511, 51640)]