17996780

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6869}}^1$

素因数の和:7009

約数の個数: 24

約数和(自身を含む): 38087280

約数和(自身を除く): 20090500

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 6869, 13738, 27476, 34345, 68690, 137380, 899839, 1799678, 3599356, 4499195, 8998390, 17996780]

約数ペア:

[(1, 17996780), (2, 8998390), (4, 4499195), (5, 3599356), (10, 1799678), (20, 899839), (131, 137380), (262, 68690), (524, 34345), (655, 27476), (1310, 13738), (2620, 6869)]