215526280

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{17551}}^1$

素因数の和:17869

約数の個数: 32

約数和(自身を含む): 486541440

約数和(自身を除く): 271015160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 17551, 35102, 70204, 87755, 140408, 175510, 351020, 702040, 5388157, 10776314, 21552628, 26940785, 43105256, 53881570, 107763140, 215526280]

約数ペア:

[(1, 215526280), (2, 107763140), (4, 53881570), (5, 43105256), (8, 26940785), (10, 21552628), (20, 10776314), (40, 5388157), (307, 702040), (614, 351020), (1228, 175510), (1535, 140408), (2456, 87755), (3070, 70204), (6140, 35102), (12280, 17551)]