71285380

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{42943}}^1$

素因数の和:43035

約数の個数: 24

約数和(自身を含む): 151506432

約数和(自身を除く): 80221052

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 42943, 85886, 171772, 214715, 429430, 858860, 3564269, 7128538, 14257076, 17821345, 35642690, 71285380]

約数ペア:

[(1, 71285380), (2, 35642690), (4, 17821345), (5, 14257076), (10, 7128538), (20, 3564269), (83, 858860), (166, 429430), (332, 214715), (415, 171772), (830, 85886), (1660, 42943)]