209888980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1499207}}^1$

素因数の和:1499223

約数の個数: 24

約数和(自身を含む): 503733888

約数和(自身を除く): 293844908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1499207, 2998414, 5996828, 7496035, 10494449, 14992070, 20988898, 29984140, 41977796, 52472245, 104944490, 209888980]

約数ペア:

[(1, 209888980), (2, 104944490), (4, 52472245), (5, 41977796), (7, 29984140), (10, 20988898), (14, 14992070), (20, 10494449), (28, 7496035), (35, 5996828), (70, 2998414), (140, 1499207)]