64340120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123731}}^1$

素因数の和:123755

約数の個数: 32

約数和(自身を含む): 155902320

約数和(自身を除く): 91562200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123731, 247462, 494924, 618655, 989848, 1237310, 1608503, 2474620, 3217006, 4949240, 6434012, 8042515, 12868024, 16085030, 32170060, 64340120]

約数ペア:

[(1, 64340120), (2, 32170060), (4, 16085030), (5, 12868024), (8, 8042515), (10, 6434012), (13, 4949240), (20, 3217006), (26, 2474620), (40, 1608503), (52, 1237310), (65, 989848), (104, 618655), (130, 494924), (260, 247462), (520, 123731)]