28936820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1277}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 66987648

約数和(自身を除く): 38050828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 1277, 2060, 2266, 2554, 4532, 5108, 5665, 6385, 11330, 12770, 14047, 22660, 25540, 28094, 56188, 70235, 131531, 140470, 263062, 280940, 526124, 657655, 1315310, 1446841, 2630620, 2893682, 5787364, 7234205, 14468410, 28936820]

約数ペア:

[(1, 28936820), (2, 14468410), (4, 7234205), (5, 5787364), (10, 2893682), (11, 2630620), (20, 1446841), (22, 1315310), (44, 657655), (55, 526124), (103, 280940), (110, 263062), (206, 140470), (220, 131531), (412, 70235), (515, 56188), (1030, 28094), (1133, 25540), (1277, 22660), (2060, 14047), (2266, 12770), (2554, 11330), (4532, 6385), (5108, 5665)]