128526320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123583}}^1$

素因数の和:123609

約数の個数: 40

約数和(自身を含む): 321812736

約数和(自身を除く): 193286416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 123583, 247166, 494332, 617915, 988664, 1235830, 1606579, 1977328, 2471660, 3213158, 4943320, 6426316, 8032895, 9886640, 12852632, 16065790, 25705264, 32131580, 64263160, 128526320]

約数ペア:

[(1, 128526320), (2, 64263160), (4, 32131580), (5, 25705264), (8, 16065790), (10, 12852632), (13, 9886640), (16, 8032895), (20, 6426316), (26, 4943320), (40, 3213158), (52, 2471660), (65, 1977328), (80, 1606579), (104, 1235830), (130, 988664), (208, 617915), (260, 494332), (520, 247166), (1040, 123583)]