128428564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71191}}^1$

素因数の和:71247

約数の個数: 24

約数和(自身を含む): 251165376

約数和(自身を除く): 122736812

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 71191, 142382, 284764, 783101, 1566202, 2918831, 3132404, 5837662, 11675324, 32107141, 64214282, 128428564]

約数ペア:

[(1, 128428564), (2, 64214282), (4, 32107141), (11, 11675324), (22, 5837662), (41, 3132404), (44, 2918831), (82, 1566202), (164, 783101), (451, 284764), (902, 142382), (1804, 71191)]