20481592

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 40384800

約数和(自身を除く): 19903208

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 709, 1256, 1418, 2836, 3611, 5672, 7222, 14444, 16307, 28888, 32614, 65228, 111313, 130456, 222626, 445252, 890504, 2560199, 5120398, 10240796, 20481592]

約数ペア:

[(1, 20481592), (2, 10240796), (4, 5120398), (8, 2560199), (23, 890504), (46, 445252), (92, 222626), (157, 130456), (184, 111313), (314, 65228), (628, 32614), (709, 28888), (1256, 16307), (1418, 14444), (2836, 7222), (3611, 5672)]