80458416020

素因数分解:

$2^2\times 5^1\times {\mathrm{4022920801}}^1$

素因数の和:4022920810

約数の個数: 12

約数和(自身を含む): 168962673684

約数和(自身を除く): 88504257664

約数列:

[1, 2, 4, 5, 10, 20, 4022920801, 8045841602, 16091683204, 20114604005, 40229208010, 80458416020]

約数ペア:

[(1, 80458416020), (2, 40229208010), (4, 20114604005), (5, 16091683204), (10, 8045841602), (20, 4022920801)]