71880340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{513431}}^1$

素因数の和:513447

約数の個数: 24

約数和(自身を含む): 172513152

約数和(自身を除く): 100632812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 513431, 1026862, 2053724, 2567155, 3594017, 5134310, 7188034, 10268620, 14376068, 17970085, 35940170, 71880340]

約数ペア:

[(1, 71880340), (2, 35940170), (4, 17970085), (5, 14376068), (7, 10268620), (10, 7188034), (14, 5134310), (20, 3594017), (28, 2567155), (35, 2053724), (70, 1026862), (140, 513431)]