20679664

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10177}}^1$

素因数の和:10312

約数の個数: 20

約数和(自身を含む): 40386304

約数和(自身を除く): 19706640

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10177, 20354, 40708, 81416, 162832, 1292479, 2584958, 5169916, 10339832, 20679664]

約数ペア:

[(1, 20679664), (2, 10339832), (4, 5169916), (8, 2584958), (16, 1292479), (127, 162832), (254, 81416), (508, 40708), (1016, 20354), (2032, 10177)]