19177780

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2671}}^1$

素因数の和:3039

約数の個数: 24

約数和(自身を含む): 40400640

約数和(自身を除く): 21222860

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2671, 3590, 5342, 7180, 10684, 13355, 26710, 53420, 958889, 1917778, 3835556, 4794445, 9588890, 19177780]

約数ペア:

[(1, 19177780), (2, 9588890), (4, 4794445), (5, 3835556), (10, 1917778), (20, 958889), (359, 53420), (718, 26710), (1436, 13355), (1795, 10684), (2671, 7180), (3590, 5342)]