131569390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{185309}}^1$

素因数の和:185387

約数の個数: 16

約数和(自身を含む): 240161760

約数和(自身を除く): 108592370

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 185309, 370618, 926545, 1853090, 13156939, 26313878, 65784695, 131569390]

約数ペア:

[(1, 131569390), (2, 65784695), (5, 26313878), (10, 13156939), (71, 1853090), (142, 926545), (355, 370618), (710, 185309)]