207945025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{23041}}^1$

素因数の和:23089

約数の個数: 18

約数和(自身を含む): 272149062

約数和(自身を除く): 64204037

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 23041, 115205, 437779, 576025, 2188895, 8317801, 10944475, 41589005, 207945025]

約数ペア:

[(1, 207945025), (5, 41589005), (19, 10944475), (25, 8317801), (95, 2188895), (361, 576025), (475, 437779), (1805, 115205), (9025, 23041)]