64353640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123757}}^1$

素因数の和:123781

約数の個数: 32

約数和(自身を含む): 155935080

約数和(自身を除く): 91581440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123757, 247514, 495028, 618785, 990056, 1237570, 1608841, 2475140, 3217682, 4950280, 6435364, 8044205, 12870728, 16088410, 32176820, 64353640]

約数ペア:

[(1, 64353640), (2, 32176820), (4, 16088410), (5, 12870728), (8, 8044205), (10, 6435364), (13, 4950280), (20, 3217682), (26, 2475140), (40, 1608841), (52, 1237570), (65, 990056), (104, 618785), (130, 495028), (260, 247514), (520, 123757)]