203400715

素因数分解:

$5^1\times 7^4\times {\mathrm{16943}}^1$

素因数の和:16976

約数の個数: 20

約数和(自身を含む): 284760864

約数和(自身を除く): 81360149

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 12005, 16943, 84715, 118601, 593005, 830207, 4151035, 5811449, 29057245, 40680143, 203400715]

約数ペア:

[(1, 203400715), (5, 40680143), (7, 29057245), (35, 5811449), (49, 4151035), (245, 830207), (343, 593005), (1715, 118601), (2401, 84715), (12005, 16943)]