20698030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2657}}^1$

素因数の和:2724

約数の個数: 32

約数和(自身を含む): 40188960

約数和(自身を除く): 19490930

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2657, 3895, 5314, 7790, 13285, 26570, 50483, 100966, 108937, 217874, 252415, 504830, 544685, 1089370, 2069803, 4139606, 10349015, 20698030]

約数ペア:

[(1, 20698030), (2, 10349015), (5, 4139606), (10, 2069803), (19, 1089370), (38, 544685), (41, 504830), (82, 252415), (95, 217874), (190, 108937), (205, 100966), (410, 50483), (779, 26570), (1558, 13285), (2657, 7790), (3895, 5314)]