8920025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 11829600

約数和(自身を除く): 2909575

約数列:

[1, 5, 19, 25, 89, 95, 211, 445, 475, 1055, 1691, 2225, 4009, 5275, 8455, 18779, 20045, 42275, 93895, 100225, 356801, 469475, 1784005, 8920025]

約数ペア:

[(1, 8920025), (5, 1784005), (19, 469475), (25, 356801), (89, 100225), (95, 93895), (211, 42275), (445, 20045), (475, 18779), (1055, 8455), (1691, 5275), (2225, 4009)]