12800505

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2027}}^1$

素因数の和:2456

約数の個数: 16

約数和(自身を含む): 20539584

約数和(自身を除く): 7739079

約数列:

[1, 3, 5, 15, 421, 1263, 2027, 2105, 6081, 6315, 10135, 30405, 853367, 2560101, 4266835, 12800505]

約数ペア:

[(1, 12800505), (3, 4266835), (5, 2560101), (15, 853367), (421, 30405), (1263, 10135), (2027, 6315), (2105, 6081)]