31490890

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{3121}}^1$

素因数の和:4137

約数の個数: 16

約数和(自身を含む): 56757960

約数和(自身を除く): 25267070

約数列:

[1, 2, 5, 10, 1009, 2018, 3121, 5045, 6242, 10090, 15605, 31210, 3149089, 6298178, 15745445, 31490890]

約数ペア:

[(1, 31490890), (2, 15745445), (5, 6298178), (10, 3149089), (1009, 31210), (2018, 15605), (3121, 10090), (5045, 6242)]