90727240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20809}}^1$

素因数の和:20929

約数の個数: 32

約数和(自身を含む): 206019000

約数和(自身を除く): 115291760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 20809, 41618, 83236, 104045, 166472, 208090, 416180, 832360, 2268181, 4536362, 9072724, 11340905, 18145448, 22681810, 45363620, 90727240]

約数ペア:

[(1, 90727240), (2, 45363620), (4, 22681810), (5, 18145448), (8, 11340905), (10, 9072724), (20, 4536362), (40, 2268181), (109, 832360), (218, 416180), (436, 208090), (545, 166472), (872, 104045), (1090, 83236), (2180, 41618), (4360, 20809)]