28205925

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 51425280

約数和(自身を除く): 23219355

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 179, 191, 275, 537, 573, 825, 895, 955, 1969, 2101, 2685, 2865, 4475, 4775, 5907, 6303, 9845, 10505, 13425, 14325, 29535, 31515, 34189, 49225, 52525, 102567, 147675, 157575, 170945, 376079, 512835, 854725, 1128237, 1880395, 2564175, 5641185, 9401975, 28205925]

約数ペア:

[(1, 28205925), (3, 9401975), (5, 5641185), (11, 2564175), (15, 1880395), (25, 1128237), (33, 854725), (55, 512835), (75, 376079), (165, 170945), (179, 157575), (191, 147675), (275, 102567), (537, 52525), (573, 49225), (825, 34189), (895, 31515), (955, 29535), (1969, 14325), (2101, 13425), (2685, 10505), (2865, 9845), (4475, 6303), (4775, 5907)]