20380216

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{15629}}^1$

素因数の和:15798

約数の個数: 16

約数和(自身を含む): 38449800

約数和(自身を除く): 18069584

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 15629, 31258, 62516, 125032, 2547527, 5095054, 10190108, 20380216]

約数ペア:

[(1, 20380216), (2, 10190108), (4, 5095054), (8, 2547527), (163, 125032), (326, 62516), (652, 31258), (1304, 15629)]