91378280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{326351}}^1$

素因数の和:326369

約数の個数: 32

約数和(自身を含む): 234973440

約数和(自身を除く): 143595160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 326351, 652702, 1305404, 1631755, 2284457, 2610808, 3263510, 4568914, 6527020, 9137828, 11422285, 13054040, 18275656, 22844570, 45689140, 91378280]

約数ペア:

[(1, 91378280), (2, 45689140), (4, 22844570), (5, 18275656), (7, 13054040), (8, 11422285), (10, 9137828), (14, 6527020), (20, 4568914), (28, 3263510), (35, 2610808), (40, 2284457), (56, 1631755), (70, 1305404), (140, 652702), (280, 326351)]