305249140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2180351}}^1$

素因数の和:2180367

約数の個数: 24

約数和(自身を含む): 732598272

約数和(自身を除く): 427349132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2180351, 4360702, 8721404, 10901755, 15262457, 21803510, 30524914, 43607020, 61049828, 76312285, 152624570, 305249140]

約数ペア:

[(1, 305249140), (2, 152624570), (4, 76312285), (5, 61049828), (7, 43607020), (10, 30524914), (14, 21803510), (20, 15262457), (28, 10901755), (35, 8721404), (70, 4360702), (140, 2180351)]