51384440

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3881}}^1$

素因数の和:4223

約数の個数: 32

約数和(自身を含む): 115994160

約数和(自身を除く): 64609720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 3881, 6620, 7762, 13240, 15524, 19405, 31048, 38810, 77620, 155240, 1284611, 2569222, 5138444, 6423055, 10276888, 12846110, 25692220, 51384440]

約数ペア:

[(1, 51384440), (2, 25692220), (4, 12846110), (5, 10276888), (8, 6423055), (10, 5138444), (20, 2569222), (40, 1284611), (331, 155240), (662, 77620), (1324, 38810), (1655, 31048), (2648, 19405), (3310, 15524), (3881, 13240), (6620, 7762)]