309218980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2208707}}^1$

素因数の和:2208723

約数の個数: 24

約数和(自身を含む): 742125888

約数和(自身を除く): 432906908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2208707, 4417414, 8834828, 11043535, 15460949, 22087070, 30921898, 44174140, 61843796, 77304745, 154609490, 309218980]

約数ペア:

[(1, 309218980), (2, 154609490), (4, 77304745), (5, 61843796), (7, 44174140), (10, 30921898), (14, 22087070), (20, 15460949), (28, 11043535), (35, 8834828), (70, 4417414), (140, 2208707)]