19905240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{165877}}^1$

素因数の和:165891

約数の個数: 32

約数和(自身を含む): 59716080

約数和(自身を除く): 39810840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 165877, 331754, 497631, 663508, 829385, 995262, 1327016, 1658770, 1990524, 2488155, 3317540, 3981048, 4976310, 6635080, 9952620, 19905240]

約数ペア:

[(1, 19905240), (2, 9952620), (3, 6635080), (4, 4976310), (5, 3981048), (6, 3317540), (8, 2488155), (10, 1990524), (12, 1658770), (15, 1327016), (20, 995262), (24, 829385), (30, 663508), (40, 497631), (60, 331754), (120, 165877)]