71290940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509221}}^1$

素因数の和:509237

約数の個数: 24

約数和(自身を含む): 171098592

約数和(自身を除く): 99807652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509221, 1018442, 2036884, 2546105, 3564547, 5092210, 7129094, 10184420, 14258188, 17822735, 35645470, 71290940]

約数ペア:

[(1, 71290940), (2, 35645470), (4, 17822735), (5, 14258188), (7, 10184420), (10, 7129094), (14, 5092210), (20, 3564547), (28, 2546105), (35, 2036884), (70, 1018442), (140, 509221)]