13579880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1321}}^1$

素因数の和:1589

約数の個数: 32

約数和(自身を含む): 30696840

約数和(自身を除く): 17116960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1321, 2056, 2570, 2642, 5140, 5284, 6605, 10280, 10568, 13210, 26420, 52840, 339497, 678994, 1357988, 1697485, 2715976, 3394970, 6789940, 13579880]

約数ペア:

[(1, 13579880), (2, 6789940), (4, 3394970), (5, 2715976), (8, 1697485), (10, 1357988), (20, 678994), (40, 339497), (257, 52840), (514, 26420), (1028, 13210), (1285, 10568), (1321, 10280), (2056, 6605), (2570, 5284), (2642, 5140)]