15815695540

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{809401}}^1$

素因数の和:810387

約数の個数: 24

約数和(自身を含む): 33246996552

約数和(自身を除く): 17431301012

約数列:

[1, 2, 4, 5, 10, 20, 977, 1954, 3908, 4885, 9770, 19540, 809401, 1618802, 3237604, 4047005, 8094010, 16188020, 790784777, 1581569554, 3163139108, 3953923885, 7907847770, 15815695540]

約数ペア:

[(1, 15815695540), (2, 7907847770), (4, 3953923885), (5, 3163139108), (10, 1581569554), (20, 790784777), (977, 16188020), (1954, 8094010), (3908, 4047005), (4885, 3237604), (9770, 1618802), (19540, 809401)]