65290480

素因数分解:

$2^4\times 5^1\times {\mathrm{816131}}^1$

素因数の和:816144

約数の個数: 20

約数和(自身を含む): 151800552

約数和(自身を除く): 86510072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 816131, 1632262, 3264524, 4080655, 6529048, 8161310, 13058096, 16322620, 32645240, 65290480]

約数ペア:

[(1, 65290480), (2, 32645240), (4, 16322620), (5, 13058096), (8, 8161310), (10, 6529048), (16, 4080655), (20, 3264524), (40, 1632262), (80, 816131)]