18118520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64709}}^1$

素因数の和:64727

約数の個数: 32

約数和(自身を含む): 46591200

約数和(自身を除く): 28472680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64709, 129418, 258836, 323545, 452963, 517672, 647090, 905926, 1294180, 1811852, 2264815, 2588360, 3623704, 4529630, 9059260, 18118520]

約数ペア:

[(1, 18118520), (2, 9059260), (4, 4529630), (5, 3623704), (7, 2588360), (8, 2264815), (10, 1811852), (14, 1294180), (20, 905926), (28, 647090), (35, 517672), (40, 452963), (56, 323545), (70, 258836), (140, 129418), (280, 64709)]