31125328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{991}}^1$

素因数の和:1163

約数の個数: 40

約数和(自身を含む): 65440256

約数和(自身を除く): 34314928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 151, 208, 302, 604, 991, 1208, 1963, 1982, 2416, 3926, 3964, 7852, 7928, 12883, 15704, 15856, 25766, 31408, 51532, 103064, 149641, 206128, 299282, 598564, 1197128, 1945333, 2394256, 3890666, 7781332, 15562664, 31125328]

約数ペア:

[(1, 31125328), (2, 15562664), (4, 7781332), (8, 3890666), (13, 2394256), (16, 1945333), (26, 1197128), (52, 598564), (104, 299282), (151, 206128), (208, 149641), (302, 103064), (604, 51532), (991, 31408), (1208, 25766), (1963, 15856), (1982, 15704), (2416, 12883), (3926, 7928), (3964, 7852)]