18212770

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 33859440

約数和(自身を除く): 15646670

約数列:

[1, 2, 5, 10, 61, 73, 122, 146, 305, 365, 409, 610, 730, 818, 2045, 4090, 4453, 8906, 22265, 24949, 29857, 44530, 49898, 59714, 124745, 149285, 249490, 298570, 1821277, 3642554, 9106385, 18212770]

約数ペア:

[(1, 18212770), (2, 9106385), (5, 3642554), (10, 1821277), (61, 298570), (73, 249490), (122, 149285), (146, 124745), (305, 59714), (365, 49898), (409, 44530), (610, 29857), (730, 24949), (818, 22265), (2045, 8906), (4090, 4453)]