1557740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1097}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 3320352

約数和(自身を除く): 1762612

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1097, 1420, 2194, 4388, 5485, 10970, 21940, 77887, 155774, 311548, 389435, 778870, 1557740]

約数ペア:

[(1, 1557740), (2, 778870), (4, 389435), (5, 311548), (10, 155774), (20, 77887), (71, 21940), (142, 10970), (284, 5485), (355, 4388), (710, 2194), (1097, 1420)]