31981220

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4831}}^1$

素因数の和:5171

約数の個数: 24

約数和(自身を含む): 67377408

約数和(自身を除く): 35396188

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 4831, 6620, 9662, 19324, 24155, 48310, 96620, 1599061, 3198122, 6396244, 7995305, 15990610, 31981220]

約数ペア:

[(1, 31981220), (2, 15990610), (4, 7995305), (5, 6396244), (10, 3198122), (20, 1599061), (331, 96620), (662, 48310), (1324, 24155), (1655, 19324), (3310, 9662), (4831, 6620)]