20456490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{681883}}^1$

素因数の和:681893

約数の個数: 16

約数和(自身を含む): 49095648

約数和(自身を除く): 28639158

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 681883, 1363766, 2045649, 3409415, 4091298, 6818830, 10228245, 20456490]

約数ペア:

[(1, 20456490), (2, 10228245), (3, 6818830), (5, 4091298), (6, 3409415), (10, 2045649), (15, 1363766), (30, 681883)]