20578736

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{2557}}^1$

素因数の和:3068

約数の個数: 20

約数和(自身を含む): 39966192

約数和(自身を除く): 19387456

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 2557, 4024, 5114, 8048, 10228, 20456, 40912, 1286171, 2572342, 5144684, 10289368, 20578736]

約数ペア:

[(1, 20578736), (2, 10289368), (4, 5144684), (8, 2572342), (16, 1286171), (503, 40912), (1006, 20456), (2012, 10228), (2557, 8048), (4024, 5114)]