231340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 498960

約数和(自身を除く): 267620

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 269, 430, 538, 860, 1076, 1345, 2690, 5380, 11567, 23134, 46268, 57835, 115670, 231340]

約数ペア:

[(1, 231340), (2, 115670), (4, 57835), (5, 46268), (10, 23134), (20, 11567), (43, 5380), (86, 2690), (172, 1345), (215, 1076), (269, 860), (430, 538)]