28325475

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 54

約数和(自身を含む): 52823628

約数和(自身を除く): 24498153

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 131, 155, 225, 279, 393, 465, 655, 775, 961, 1179, 1395, 1965, 2325, 2883, 3275, 4061, 4805, 5895, 6975, 8649, 9825, 12183, 14415, 20305, 24025, 29475, 36549, 43245, 60915, 72075, 101525, 125891, 182745, 216225, 304575, 377673, 629455, 913725, 1133019, 1888365, 3147275, 5665095, 9441825, 28325475]

約数ペア:

[(1, 28325475), (3, 9441825), (5, 5665095), (9, 3147275), (15, 1888365), (25, 1133019), (31, 913725), (45, 629455), (75, 377673), (93, 304575), (131, 216225), (155, 182745), (225, 125891), (279, 101525), (393, 72075), (465, 60915), (655, 43245), (775, 36549), (961, 29475), (1179, 24025), (1395, 20305), (1965, 14415), (2325, 12183), (2883, 9825), (3275, 8649), (4061, 6975), (4805, 5895)]