72895745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 102241440

約数和(自身を除く): 29345695

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 533, 697, 1105, 1609, 2665, 3485, 8045, 9061, 20917, 27353, 45305, 65969, 104585, 136765, 329845, 355589, 857597, 1121473, 1777945, 4287985, 5607365, 14579149, 72895745]

約数ペア:

[(1, 72895745), (5, 14579149), (13, 5607365), (17, 4287985), (41, 1777945), (65, 1121473), (85, 857597), (205, 355589), (221, 329845), (533, 136765), (697, 104585), (1105, 65969), (1609, 45305), (2665, 27353), (3485, 20917), (8045, 9061)]