20165560

素因数分解:

$2^3\times 5^1\times {\mathrm{504139}}^1$

素因数の和:504150

約数の個数: 16

約数和(自身を含む): 45372600

約数和(自身を除く): 25207040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504139, 1008278, 2016556, 2520695, 4033112, 5041390, 10082780, 20165560]

約数ペア:

[(1, 20165560), (2, 10082780), (4, 5041390), (5, 4033112), (8, 2520695), (10, 2016556), (20, 1008278), (40, 504139)]