18979580

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1579}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 39948720

約数和(自身を除く): 20969140

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 1579, 2404, 3005, 3158, 6010, 6316, 7895, 12020, 15790, 31580, 948979, 1897958, 3795916, 4744895, 9489790, 18979580]

約数ペア:

[(1, 18979580), (2, 9489790), (4, 4744895), (5, 3795916), (10, 1897958), (20, 948979), (601, 31580), (1202, 15790), (1579, 12020), (2404, 7895), (3005, 6316), (3158, 6010)]