18162640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9871}}^1$

素因数の和:9907

約数の個数: 40

約数和(自身を含む): 44068608

約数和(自身を除く): 25905968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9871, 19742, 39484, 49355, 78968, 98710, 157936, 197420, 227033, 394840, 454066, 789680, 908132, 1135165, 1816264, 2270330, 3632528, 4540660, 9081320, 18162640]

約数ペア:

[(1, 18162640), (2, 9081320), (4, 4540660), (5, 3632528), (8, 2270330), (10, 1816264), (16, 1135165), (20, 908132), (23, 789680), (40, 454066), (46, 394840), (80, 227033), (92, 197420), (115, 157936), (184, 98710), (230, 78968), (368, 49355), (460, 39484), (920, 19742), (1840, 9871)]