65522480

素因数分解:

$2^4\times 5^1\times {\mathrm{819031}}^1$

素因数の和:819044

約数の個数: 20

約数和(自身を含む): 152339952

約数和(自身を除く): 86817472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 819031, 1638062, 3276124, 4095155, 6552248, 8190310, 13104496, 16380620, 32761240, 65522480]

約数ペア:

[(1, 65522480), (2, 32761240), (4, 16380620), (5, 13104496), (8, 8190310), (10, 6552248), (16, 4095155), (20, 3276124), (40, 1638062), (80, 819031)]