217126280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{775451}}^1$

素因数の和:775469

約数の個数: 32

約数和(自身を含む): 558325440

約数和(自身を除く): 341199160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 775451, 1550902, 3101804, 3877255, 5428157, 6203608, 7754510, 10856314, 15509020, 21712628, 27140785, 31018040, 43425256, 54281570, 108563140, 217126280]

約数ペア:

[(1, 217126280), (2, 108563140), (4, 54281570), (5, 43425256), (7, 31018040), (8, 27140785), (10, 21712628), (14, 15509020), (20, 10856314), (28, 7754510), (35, 6203608), (40, 5428157), (56, 3877255), (70, 3101804), (140, 1550902), (280, 775451)]