81904496

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{10177}}^1$

素因数の和:10688

約数の個数: 20

約数和(自身を含む): 159021072

約数和(自身を除く): 77116576

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 4024, 8048, 10177, 20354, 40708, 81416, 162832, 5119031, 10238062, 20476124, 40952248, 81904496]

約数ペア:

[(1, 81904496), (2, 40952248), (4, 20476124), (8, 10238062), (16, 5119031), (503, 162832), (1006, 81416), (2012, 40708), (4024, 20354), (8048, 10177)]