20452445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 28449792

約数和(自身を除く): 7997347

約数列:

[1, 5, 13, 17, 65, 83, 85, 221, 223, 415, 1079, 1105, 1115, 1411, 2899, 3791, 5395, 7055, 14495, 18343, 18509, 18955, 49283, 91715, 92545, 240617, 246415, 314653, 1203085, 1573265, 4090489, 20452445]

約数ペア:

[(1, 20452445), (5, 4090489), (13, 1573265), (17, 1203085), (65, 314653), (83, 246415), (85, 240617), (221, 92545), (223, 91715), (415, 49283), (1079, 18955), (1105, 18509), (1115, 18343), (1411, 14495), (2899, 7055), (3791, 5395)]