18097025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 24403200

約数和(自身を除く): 6306175

約数列:

[1, 5, 19, 25, 31, 95, 155, 475, 589, 775, 1229, 2945, 6145, 14725, 23351, 30725, 38099, 116755, 190495, 583775, 723881, 952475, 3619405, 18097025]

約数ペア:

[(1, 18097025), (5, 3619405), (19, 952475), (25, 723881), (31, 583775), (95, 190495), (155, 116755), (475, 38099), (589, 30725), (775, 23351), (1229, 14725), (2945, 6145)]