28611820

素因数分解:

$2^2\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{1297}}^1$

素因数の和:2409

約数の個数: 24

約数和(自身を含む): 60185664

約数和(自身を除く): 31573844

約数列:

[1, 2, 4, 5, 10, 20, 1103, 1297, 2206, 2594, 4412, 5188, 5515, 6485, 11030, 12970, 22060, 25940, 1430591, 2861182, 5722364, 7152955, 14305910, 28611820]

約数ペア:

[(1, 28611820), (2, 14305910), (4, 7152955), (5, 5722364), (10, 2861182), (20, 1430591), (1103, 25940), (1297, 22060), (2206, 12970), (2594, 11030), (4412, 6485), (5188, 5515)]