71542640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68791}}^1$

素因数の和:68817

約数の個数: 40

約数和(自身を含む): 179134368

約数和(自身を除く): 107591728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68791, 137582, 275164, 343955, 550328, 687910, 894283, 1100656, 1375820, 1788566, 2751640, 3577132, 4471415, 5503280, 7154264, 8942830, 14308528, 17885660, 35771320, 71542640]

約数ペア:

[(1, 71542640), (2, 35771320), (4, 17885660), (5, 14308528), (8, 8942830), (10, 7154264), (13, 5503280), (16, 4471415), (20, 3577132), (26, 2751640), (40, 1788566), (52, 1375820), (65, 1100656), (80, 894283), (104, 687910), (130, 550328), (208, 343955), (260, 275164), (520, 137582), (1040, 68791)]