90018812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{20857}}^1$

素因数の和:20957

約数の個数: 24

約数和(自身を含む): 171703056

約数和(自身を除く): 81684244

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 20857, 41714, 83428, 271141, 542282, 1084564, 1731131, 3462262, 6924524, 22504703, 45009406, 90018812]

約数ペア:

[(1, 90018812), (2, 45009406), (4, 22504703), (13, 6924524), (26, 3462262), (52, 1731131), (83, 1084564), (166, 542282), (332, 271141), (1079, 83428), (2158, 41714), (4316, 20857)]