16089680

素因数分解:

$2^4\times 5^1\times {\mathrm{201121}}^1$

素因数の和:201134

約数の個数: 20

約数和(自身を含む): 37408692

約数和(自身を除く): 21319012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 201121, 402242, 804484, 1005605, 1608968, 2011210, 3217936, 4022420, 8044840, 16089680]

約数ペア:

[(1, 16089680), (2, 8044840), (4, 4022420), (5, 3217936), (8, 2011210), (10, 1608968), (16, 1005605), (20, 804484), (40, 402242), (80, 201121)]