1631140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 3999744

約数和(自身を除く): 2368604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 191, 244, 305, 382, 427, 610, 764, 854, 955, 1220, 1337, 1708, 1910, 2135, 2674, 3820, 4270, 5348, 6685, 8540, 11651, 13370, 23302, 26740, 46604, 58255, 81557, 116510, 163114, 233020, 326228, 407785, 815570, 1631140]

約数ペア:

[(1, 1631140), (2, 815570), (4, 407785), (5, 326228), (7, 233020), (10, 163114), (14, 116510), (20, 81557), (28, 58255), (35, 46604), (61, 26740), (70, 23302), (122, 13370), (140, 11651), (191, 8540), (244, 6685), (305, 5348), (382, 4270), (427, 3820), (610, 2674), (764, 2135), (854, 1910), (955, 1708), (1220, 1337)]