28615840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:326

約数の個数: 96

約数和(自身を含む): 75116160

約数和(自身を除く): 46500320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 71, 80, 88, 110, 142, 160, 176, 220, 229, 284, 352, 355, 440, 458, 568, 710, 781, 880, 916, 1136, 1145, 1420, 1562, 1760, 1832, 2272, 2290, 2519, 2840, 3124, 3664, 3905, 4580, 5038, 5680, 6248, 7328, 7810, 9160, 10076, 11360, 12496, 12595, 15620, 16259, 18320, 20152, 24992, 25190, 31240, 32518, 36640, 40304, 50380, 62480, 65036, 80608, 81295, 100760, 124960, 130072, 162590, 178849, 201520, 260144, 325180, 357698, 403040, 520288, 650360, 715396, 894245, 1300720, 1430792, 1788490, 2601440, 2861584, 3576980, 5723168, 7153960, 14307920, 28615840]

約数ペア:

[(1, 28615840), (2, 14307920), (4, 7153960), (5, 5723168), (8, 3576980), (10, 2861584), (11, 2601440), (16, 1788490), (20, 1430792), (22, 1300720), (32, 894245), (40, 715396), (44, 650360), (55, 520288), (71, 403040), (80, 357698), (88, 325180), (110, 260144), (142, 201520), (160, 178849), (176, 162590), (220, 130072), (229, 124960), (284, 100760), (352, 81295), (355, 80608), (440, 65036), (458, 62480), (568, 50380), (710, 40304), (781, 36640), (880, 32518), (916, 31240), (1136, 25190), (1145, 24992), (1420, 20152), (1562, 18320), (1760, 16259), (1832, 15620), (2272, 12595), (2290, 12496), (2519, 11360), (2840, 10076), (3124, 9160), (3664, 7810), (3905, 7328), (4580, 6248), (5038, 5680)]