28489875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 23401965

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 109, 123, 125, 205, 255, 327, 375, 425, 545, 615, 697, 1025, 1275, 1635, 1853, 2091, 2125, 2725, 3075, 3485, 4469, 5125, 5559, 6375, 8175, 9265, 10455, 13407, 13625, 15375, 17425, 22345, 27795, 40875, 46325, 52275, 67035, 75973, 87125, 111725, 138975, 227919, 231625, 261375, 335175, 379865, 558625, 694875, 1139595, 1675875, 1899325, 5697975, 9496625, 28489875]

約数ペア:

[(1, 28489875), (3, 9496625), (5, 5697975), (15, 1899325), (17, 1675875), (25, 1139595), (41, 694875), (51, 558625), (75, 379865), (85, 335175), (109, 261375), (123, 231625), (125, 227919), (205, 138975), (255, 111725), (327, 87125), (375, 75973), (425, 67035), (545, 52275), (615, 46325), (697, 40875), (1025, 27795), (1275, 22345), (1635, 17425), (1853, 15375), (2091, 13625), (2125, 13407), (2725, 10455), (3075, 9265), (3485, 8175), (4469, 6375), (5125, 5559)]