996980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{631}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 2123520

約数和(自身を除く): 1126540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 631, 790, 1262, 1580, 2524, 3155, 6310, 12620, 49849, 99698, 199396, 249245, 498490, 996980]

約数ペア:

[(1, 996980), (2, 498490), (4, 249245), (5, 199396), (10, 99698), (20, 49849), (79, 12620), (158, 6310), (316, 3155), (395, 2524), (631, 1580), (790, 1262)]