28337660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108991}}^1$

素因数の和:109013

約数の個数: 24

約数和(自身を含む): 64087296

約数和(自身を除く): 35749636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108991, 217982, 435964, 544955, 1089910, 1416883, 2179820, 2833766, 5667532, 7084415, 14168830, 28337660]

約数ペア:

[(1, 28337660), (2, 14168830), (4, 7084415), (5, 5667532), (10, 2833766), (13, 2179820), (20, 1416883), (26, 1089910), (52, 544955), (65, 435964), (130, 217982), (260, 108991)]