280308980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2002207}}^1$

素因数の和:2002223

約数の個数: 24

約数和(自身を含む): 672741888

約数和(自身を除く): 392432908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2002207, 4004414, 8008828, 10011035, 14015449, 20022070, 28030898, 40044140, 56061796, 70077245, 140154490, 280308980]

約数ペア:

[(1, 280308980), (2, 140154490), (4, 70077245), (5, 56061796), (7, 40044140), (10, 28030898), (14, 20022070), (20, 14015449), (28, 10011035), (35, 8008828), (70, 4004414), (140, 2002207)]