12660880

素因数分解:

$2^4\times 5^1\times {\mathrm{158261}}^1$

素因数の和:158274

約数の個数: 20

約数和(自身を含む): 29436732

約数和(自身を除く): 16775852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158261, 316522, 633044, 791305, 1266088, 1582610, 2532176, 3165220, 6330440, 12660880]

約数ペア:

[(1, 12660880), (2, 6330440), (4, 3165220), (5, 2532176), (8, 1582610), (10, 1266088), (16, 791305), (20, 633044), (40, 316522), (80, 158261)]