31156390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163981}}^1$

素因数の和:164007

約数の個数: 16

約数和(自身を含む): 59033520

約数和(自身を除く): 27877130

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 163981, 327962, 819905, 1639810, 3115639, 6231278, 15578195, 31156390]

約数ペア:

[(1, 31156390), (2, 15578195), (5, 6231278), (10, 3115639), (19, 1639810), (38, 819905), (95, 327962), (190, 163981)]