13405720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4591}}^1$

素因数の和:4675

約数の個数: 32

約数和(自身を含む): 30582720

約数和(自身を除く): 17177000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4591, 9182, 18364, 22955, 36728, 45910, 91820, 183640, 335143, 670286, 1340572, 1675715, 2681144, 3351430, 6702860, 13405720]

約数ペア:

[(1, 13405720), (2, 6702860), (4, 3351430), (5, 2681144), (8, 1675715), (10, 1340572), (20, 670286), (40, 335143), (73, 183640), (146, 91820), (292, 45910), (365, 36728), (584, 22955), (730, 18364), (1460, 9182), (2920, 4591)]