28720680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1747}}^1$

素因数の和:1898

約数の個数: 64

約数和(自身を含む): 86840640

約数和(自身を除く): 58119960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1370, 1644, 1747, 2055, 2740, 3288, 3494, 4110, 5241, 5480, 6988, 8220, 8735, 10482, 13976, 16440, 17470, 20964, 26205, 34940, 41928, 52410, 69880, 104820, 209640, 239339, 478678, 718017, 957356, 1196695, 1436034, 1914712, 2393390, 2872068, 3590085, 4786780, 5744136, 7180170, 9573560, 14360340, 28720680]

約数ペア:

[(1, 28720680), (2, 14360340), (3, 9573560), (4, 7180170), (5, 5744136), (6, 4786780), (8, 3590085), (10, 2872068), (12, 2393390), (15, 1914712), (20, 1436034), (24, 1196695), (30, 957356), (40, 718017), (60, 478678), (120, 239339), (137, 209640), (274, 104820), (411, 69880), (548, 52410), (685, 41928), (822, 34940), (1096, 26205), (1370, 20964), (1644, 17470), (1747, 16440), (2055, 13976), (2740, 10482), (3288, 8735), (3494, 8220), (4110, 6988), (5241, 5480)]