51416780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{36209}}^1$

素因数の和:36289

約数の個数: 24

約数和(自身を含む): 109499040

約数和(自身を除く): 58082260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 36209, 72418, 144836, 181045, 362090, 724180, 2570839, 5141678, 10283356, 12854195, 25708390, 51416780]

約数ペア:

[(1, 51416780), (2, 25708390), (4, 12854195), (5, 10283356), (10, 5141678), (20, 2570839), (71, 724180), (142, 362090), (284, 181045), (355, 144836), (710, 72418), (1420, 36209)]