28155192

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 81285120

約数和(自身を除く): 53129928

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 41, 52, 62, 71, 78, 82, 93, 104, 123, 124, 142, 156, 164, 186, 213, 246, 248, 284, 312, 328, 372, 403, 426, 492, 533, 568, 744, 806, 852, 923, 984, 1066, 1209, 1271, 1599, 1612, 1704, 1846, 2132, 2201, 2418, 2542, 2769, 2911, 3198, 3224, 3692, 3813, 4264, 4402, 4836, 5084, 5538, 5822, 6396, 6603, 7384, 7626, 8733, 8804, 9672, 10168, 11076, 11644, 12792, 13206, 15252, 16523, 17466, 17608, 22152, 23288, 26412, 28613, 30504, 33046, 34932, 37843, 49569, 52824, 57226, 66092, 69864, 75686, 85839, 90241, 99138, 113529, 114452, 132184, 151372, 171678, 180482, 198276, 227058, 228904, 270723, 302744, 343356, 360964, 396552, 454116, 541446, 686712, 721928, 908232, 1082892, 1173133, 2165784, 2346266, 3519399, 4692532, 7038798, 9385064, 14077596, 28155192]

約数ペア:

[(1, 28155192), (2, 14077596), (3, 9385064), (4, 7038798), (6, 4692532), (8, 3519399), (12, 2346266), (13, 2165784), (24, 1173133), (26, 1082892), (31, 908232), (39, 721928), (41, 686712), (52, 541446), (62, 454116), (71, 396552), (78, 360964), (82, 343356), (93, 302744), (104, 270723), (123, 228904), (124, 227058), (142, 198276), (156, 180482), (164, 171678), (186, 151372), (213, 132184), (246, 114452), (248, 113529), (284, 99138), (312, 90241), (328, 85839), (372, 75686), (403, 69864), (426, 66092), (492, 57226), (533, 52824), (568, 49569), (744, 37843), (806, 34932), (852, 33046), (923, 30504), (984, 28613), (1066, 26412), (1209, 23288), (1271, 22152), (1599, 17608), (1612, 17466), (1704, 16523), (1846, 15252), (2132, 13206), (2201, 12792), (2418, 11644), (2542, 11076), (2769, 10168), (2911, 9672), (3198, 8804), (3224, 8733), (3692, 7626), (3813, 7384), (4264, 6603), (4402, 6396), (4836, 5822), (5084, 5538)]