156927640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{91237}}^1$

素因数の和:91291

約数の個数: 32

約数和(自身を含む): 361302480

約数和(自身を除く): 204374840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 91237, 182474, 364948, 456185, 729896, 912370, 1824740, 3649480, 3923191, 7846382, 15692764, 19615955, 31385528, 39231910, 78463820, 156927640]

約数ペア:

[(1, 156927640), (2, 78463820), (4, 39231910), (5, 31385528), (8, 19615955), (10, 15692764), (20, 7846382), (40, 3923191), (43, 3649480), (86, 1824740), (172, 912370), (215, 729896), (344, 456185), (430, 364948), (860, 182474), (1720, 91237)]