156931810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{320269}}^1$

素因数の和:320290

約数の個数: 24

約数和(自身を含む): 328597020

約数和(自身を除く): 171665210

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 320269, 640538, 1601345, 2241883, 3202690, 4483766, 11209415, 15693181, 22418830, 31386362, 78465905, 156931810]

約数ペア:

[(1, 156931810), (2, 78465905), (5, 31386362), (7, 22418830), (10, 15693181), (14, 11209415), (35, 4483766), (49, 3202690), (70, 2241883), (98, 1601345), (245, 640538), (490, 320269)]