204490475

素因数分解:

$5^2\times 7^2\times {\mathrm{166931}}^1$

素因数の和:166955

約数の個数: 18

約数和(自身を含む): 294968844

約数和(自身を除く): 90478369

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 166931, 834655, 1168517, 4173275, 5842585, 8179619, 29212925, 40898095, 204490475]

約数ペア:

[(1, 204490475), (5, 40898095), (7, 29212925), (25, 8179619), (35, 5842585), (49, 4173275), (175, 1168517), (245, 834655), (1225, 166931)]