31282405

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 47155968

約数和(自身を除く): 15873563

約数列:

[1, 5, 7, 11, 35, 55, 77, 193, 385, 421, 965, 1351, 2105, 2123, 2947, 4631, 6755, 10615, 14735, 14861, 23155, 32417, 74305, 81253, 162085, 406265, 568771, 893783, 2843855, 4468915, 6256481, 31282405]

約数ペア:

[(1, 31282405), (5, 6256481), (7, 4468915), (11, 2843855), (35, 893783), (55, 568771), (77, 406265), (193, 162085), (385, 81253), (421, 74305), (965, 32417), (1351, 23155), (2105, 14861), (2123, 14735), (2947, 10615), (4631, 6755)]