18725680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10177}}^1$

素因数の和:10213

約数の個数: 40

約数和(自身を含む): 45434592

約数和(自身を除く): 26708912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10177, 20354, 40708, 50885, 81416, 101770, 162832, 203540, 234071, 407080, 468142, 814160, 936284, 1170355, 1872568, 2340710, 3745136, 4681420, 9362840, 18725680]

約数ペア:

[(1, 18725680), (2, 9362840), (4, 4681420), (5, 3745136), (8, 2340710), (10, 1872568), (16, 1170355), (20, 936284), (23, 814160), (40, 468142), (46, 407080), (80, 234071), (92, 203540), (115, 162832), (184, 101770), (230, 81416), (368, 50885), (460, 40708), (920, 20354), (1840, 10177)]