20990110

素因数分解:

$2^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7417}}^1$

素因数の和:7707

約数の個数: 16

約数和(自身を含む): 37920816

約数和(自身を除く): 16930706

約数列:

[1, 2, 5, 10, 283, 566, 1415, 2830, 7417, 14834, 37085, 74170, 2099011, 4198022, 10495055, 20990110]

約数ペア:

[(1, 20990110), (2, 10495055), (5, 4198022), (10, 2099011), (283, 74170), (566, 37085), (1415, 14834), (2830, 7417)]