28949780

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{5381}}^1$

素因数の和:5659

約数の個数: 24

約数和(自身を含む): 61031880

約数和(自身を除く): 32082100

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 5381, 10762, 21524, 26905, 53810, 107620, 1447489, 2894978, 5789956, 7237445, 14474890, 28949780]

約数ペア:

[(1, 28949780), (2, 14474890), (4, 7237445), (5, 5789956), (10, 2894978), (20, 1447489), (269, 107620), (538, 53810), (1076, 26905), (1345, 21524), (2690, 10762), (5380, 5381)]