18236140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70139}}^1$

素因数の和:70161

約数の個数: 24

約数和(自身を含む): 41242320

約数和(自身を除く): 23006180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70139, 140278, 280556, 350695, 701390, 911807, 1402780, 1823614, 3647228, 4559035, 9118070, 18236140]

約数ペア:

[(1, 18236140), (2, 9118070), (4, 4559035), (5, 3647228), (10, 1823614), (13, 1402780), (20, 911807), (26, 701390), (52, 350695), (65, 280556), (130, 140278), (260, 70139)]