28320825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 52107776

約数和(自身を除く): 23786951

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 195, 325, 403, 465, 775, 937, 975, 1209, 2015, 2325, 2811, 4685, 6045, 10075, 12181, 14055, 23425, 29047, 30225, 36543, 60905, 70275, 87141, 145235, 182715, 304525, 377611, 435705, 726175, 913575, 1132833, 1888055, 2178525, 5664165, 9440275, 28320825]

約数ペア:

[(1, 28320825), (3, 9440275), (5, 5664165), (13, 2178525), (15, 1888055), (25, 1132833), (31, 913575), (39, 726175), (65, 435705), (75, 377611), (93, 304525), (155, 182715), (195, 145235), (325, 87141), (403, 70275), (465, 60905), (775, 36543), (937, 30225), (975, 29047), (1209, 23425), (2015, 14055), (2325, 12181), (2811, 10075), (4685, 6045)]