212947895

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1\times {\mathrm{1031}}^1$

素因数の和:1546

約数の個数: 16

約数和(自身を含む): 258949440

約数和(自身を除く): 46001545

約数列:

[1, 5, 101, 409, 505, 1031, 2045, 5155, 41309, 104131, 206545, 421679, 520655, 2108395, 42589579, 212947895]

約数ペア:

[(1, 212947895), (5, 42589579), (101, 2108395), (409, 520655), (505, 421679), (1031, 206545), (2045, 104131), (5155, 41309)]