28285920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1511}}^1$

素因数の和:1545

約数の個数: 144

約数和(自身を含む): 104019552

約数和(自身を除く): 75733632

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1511, 1560, 1872, 2080, 2340, 3022, 3120, 3744, 4533, 4680, 6044, 6240, 7555, 9066, 9360, 12088, 13599, 15110, 18132, 18720, 19643, 22665, 24176, 27198, 30220, 36264, 39286, 45330, 48352, 54396, 58929, 60440, 67995, 72528, 78572, 90660, 98215, 108792, 117858, 120880, 135990, 145056, 157144, 176787, 181320, 196430, 217584, 235716, 241760, 271980, 294645, 314288, 353574, 362640, 392860, 435168, 471432, 543960, 589290, 628576, 707148, 725280, 785720, 883935, 942864, 1087920, 1178580, 1414296, 1571440, 1767870, 1885728, 2175840, 2357160, 2828592, 3142880, 3535740, 4714320, 5657184, 7071480, 9428640, 14142960, 28285920]

約数ペア:

[(1, 28285920), (2, 14142960), (3, 9428640), (4, 7071480), (5, 5657184), (6, 4714320), (8, 3535740), (9, 3142880), (10, 2828592), (12, 2357160), (13, 2175840), (15, 1885728), (16, 1767870), (18, 1571440), (20, 1414296), (24, 1178580), (26, 1087920), (30, 942864), (32, 883935), (36, 785720), (39, 725280), (40, 707148), (45, 628576), (48, 589290), (52, 543960), (60, 471432), (65, 435168), (72, 392860), (78, 362640), (80, 353574), (90, 314288), (96, 294645), (104, 271980), (117, 241760), (120, 235716), (130, 217584), (144, 196430), (156, 181320), (160, 176787), (180, 157144), (195, 145056), (208, 135990), (234, 120880), (240, 117858), (260, 108792), (288, 98215), (312, 90660), (360, 78572), (390, 72528), (416, 67995), (468, 60440), (480, 58929), (520, 54396), (585, 48352), (624, 45330), (720, 39286), (780, 36264), (936, 30220), (1040, 27198), (1170, 24176), (1248, 22665), (1440, 19643), (1511, 18720), (1560, 18132), (1872, 15110), (2080, 13599), (2340, 12088), (3022, 9360), (3120, 9066), (3744, 7555), (4533, 6240), (4680, 6044)]