128934140

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{28909}}^1$

素因数の和:29141

約数の個数: 24

約数和(自身を含む): 271985280

約数和(自身を除く): 143051140

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 28909, 57818, 115636, 144545, 289090, 578180, 6446707, 12893414, 25786828, 32233535, 64467070, 128934140]

約数ペア:

[(1, 128934140), (2, 64467070), (4, 32233535), (5, 25786828), (10, 12893414), (20, 6446707), (223, 578180), (446, 289090), (892, 144545), (1115, 115636), (2230, 57818), (4460, 28909)]