12585680

素因数分解:

$2^4\times 5^1\times {\mathrm{157321}}^1$

素因数の和:157334

約数の個数: 20

約数和(自身を含む): 29261892

約数和(自身を除く): 16676212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157321, 314642, 629284, 786605, 1258568, 1573210, 2517136, 3146420, 6292840, 12585680]

約数ペア:

[(1, 12585680), (2, 6292840), (4, 3146420), (5, 2517136), (8, 1573210), (10, 1258568), (16, 786605), (20, 629284), (40, 314642), (80, 157321)]