18228070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2389}}^1$

素因数の和:2512

約数の個数: 32

約数和(自身を含む): 37857600

約数和(自身を除く): 19629530

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2389, 3815, 4778, 7630, 11945, 16723, 23890, 33446, 83615, 167230, 260401, 520802, 1302005, 1822807, 2604010, 3645614, 9114035, 18228070]

約数ペア:

[(1, 18228070), (2, 9114035), (5, 3645614), (7, 2604010), (10, 1822807), (14, 1302005), (35, 520802), (70, 260401), (109, 167230), (218, 83615), (545, 33446), (763, 23890), (1090, 16723), (1526, 11945), (2389, 7630), (3815, 4778)]