16661740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7643}}^1$

素因数の和:7761

約数の個数: 24

約数和(自身を含む): 35315280

約数和(自身を除く): 18653540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 7643, 15286, 30572, 38215, 76430, 152860, 833087, 1666174, 3332348, 4165435, 8330870, 16661740]

約数ペア:

[(1, 16661740), (2, 8330870), (4, 4165435), (5, 3332348), (10, 1666174), (20, 833087), (109, 152860), (218, 76430), (436, 38215), (545, 30572), (1090, 15286), (2180, 7643)]