138415340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{988681}}^1$

素因数の和:988697

約数の個数: 24

約数和(自身を含む): 332197152

約数和(自身を除く): 193781812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 988681, 1977362, 3954724, 4943405, 6920767, 9886810, 13841534, 19773620, 27683068, 34603835, 69207670, 138415340]

約数ペア:

[(1, 138415340), (2, 69207670), (4, 34603835), (5, 27683068), (7, 19773620), (10, 13841534), (14, 9886810), (20, 6920767), (28, 4943405), (35, 3954724), (70, 1977362), (140, 988681)]