42117890

素因数分解:

$2^1\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{2161}}^1$

素因数の和:4117

約数の個数: 16

約数和(自身を含む): 75886200

約数和(自身を除く): 33768310

約数列:

[1, 2, 5, 10, 1949, 2161, 3898, 4322, 9745, 10805, 19490, 21610, 4211789, 8423578, 21058945, 42117890]

約数ペア:

[(1, 42117890), (2, 21058945), (5, 8423578), (10, 4211789), (1949, 21610), (2161, 19490), (3898, 10805), (4322, 9745)]