309941380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2213867}}^1$

素因数の和:2213883

約数の個数: 24

約数和(自身を含む): 743859648

約数和(自身を除く): 433918268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2213867, 4427734, 8855468, 11069335, 15497069, 22138670, 30994138, 44277340, 61988276, 77485345, 154970690, 309941380]

約数ペア:

[(1, 309941380), (2, 154970690), (4, 77485345), (5, 61988276), (7, 44277340), (10, 30994138), (14, 22138670), (20, 15497069), (28, 11069335), (35, 8855468), (70, 4427734), (140, 2213867)]