651640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1481}}^1$

素因数の和:1503

約数の個数: 32

約数和(自身を含む): 1600560

約数和(自身を除く): 948920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1481, 2962, 5924, 7405, 11848, 14810, 16291, 29620, 32582, 59240, 65164, 81455, 130328, 162910, 325820, 651640]

約数ペア:

[(1, 651640), (2, 325820), (4, 162910), (5, 130328), (8, 81455), (10, 65164), (11, 59240), (20, 32582), (22, 29620), (40, 16291), (44, 14810), (55, 11848), (88, 7405), (110, 5924), (220, 2962), (440, 1481)]