31980290

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21179}}^1$

素因数の和:21337

約数の個数: 16

約数和(自身を含む): 57948480

約数和(自身を除く): 25968190

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 21179, 42358, 105895, 211790, 3198029, 6396058, 15990145, 31980290]

約数ペア:

[(1, 31980290), (2, 15990145), (5, 6396058), (10, 3198029), (151, 211790), (302, 105895), (755, 42358), (1510, 21179)]