66433240

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2591}}^1$

素因数の和:3243

約数の個数: 32

約数和(自身を含む): 149765760

約数和(自身を除く): 83332520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 2591, 3205, 5128, 5182, 6410, 10364, 12820, 12955, 20728, 25640, 25910, 51820, 103640, 1660831, 3321662, 6643324, 8304155, 13286648, 16608310, 33216620, 66433240]

約数ペア:

[(1, 66433240), (2, 33216620), (4, 16608310), (5, 13286648), (8, 8304155), (10, 6643324), (20, 3321662), (40, 1660831), (641, 103640), (1282, 51820), (2564, 25910), (2591, 25640), (3205, 20728), (5128, 12955), (5182, 12820), (6410, 10364)]