6649940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 15410304

約数和(自身を除く): 8760364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 167, 181, 220, 334, 362, 668, 724, 835, 905, 1670, 1810, 1837, 1991, 3340, 3620, 3674, 3982, 7348, 7964, 9185, 9955, 18370, 19910, 30227, 36740, 39820, 60454, 120908, 151135, 302270, 332497, 604540, 664994, 1329988, 1662485, 3324970, 6649940]

約数ペア:

[(1, 6649940), (2, 3324970), (4, 1662485), (5, 1329988), (10, 664994), (11, 604540), (20, 332497), (22, 302270), (44, 151135), (55, 120908), (110, 60454), (167, 39820), (181, 36740), (220, 30227), (334, 19910), (362, 18370), (668, 9955), (724, 9185), (835, 7964), (905, 7348), (1670, 3982), (1810, 3674), (1837, 3620), (1991, 3340)]