866140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 2064384

約数和(自身を除く): 1198244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 127, 155, 220, 254, 310, 341, 508, 620, 635, 682, 1270, 1364, 1397, 1705, 2540, 2794, 3410, 3937, 5588, 6820, 6985, 7874, 13970, 15748, 19685, 27940, 39370, 43307, 78740, 86614, 173228, 216535, 433070, 866140]

約数ペア:

[(1, 866140), (2, 433070), (4, 216535), (5, 173228), (10, 86614), (11, 78740), (20, 43307), (22, 39370), (31, 27940), (44, 19685), (55, 15748), (62, 13970), (110, 7874), (124, 6985), (127, 6820), (155, 5588), (220, 3937), (254, 3410), (310, 2794), (341, 2540), (508, 1705), (620, 1397), (635, 1364), (682, 1270)]