173870020

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{6581}}^1$

素因数の和:7911

約数の個数: 24

約数和(自身を含む): 365458968

約数和(自身を除く): 191588948

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 5284, 6581, 6605, 13162, 13210, 26324, 26420, 32905, 65810, 131620, 8693501, 17387002, 34774004, 43467505, 86935010, 173870020]

約数ペア:

[(1, 173870020), (2, 86935010), (4, 43467505), (5, 34774004), (10, 17387002), (20, 8693501), (1321, 131620), (2642, 65810), (5284, 32905), (6581, 26420), (6605, 26324), (13162, 13210)]