15966980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21577}}^1$

素因数の和:21623

約数の個数: 24

約数和(自身を含む): 34438488

約数和(自身を除く): 18471508

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 21577, 43154, 86308, 107885, 215770, 431540, 798349, 1596698, 3193396, 3991745, 7983490, 15966980]

約数ペア:

[(1, 15966980), (2, 7983490), (4, 3991745), (5, 3193396), (10, 1596698), (20, 798349), (37, 431540), (74, 215770), (148, 107885), (185, 86308), (370, 43154), (740, 21577)]