21409109280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{87973}}^1$

素因数の和:88020

約数の個数: 216

約数和(自身を含む): 79111675188

約数和(自身を除く): 57702565908

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, 169, 180, 195, 208, 234, 240, 260, 288, 312, 338, 360, 390, 416, 468, 480, 507, 520, 585, 624, 676, 720, 780, 845, 936, 1014, 1040, 1170, 1248, 1352, 1440, 1521, 1560, 1690, 1872, 2028, 2080, 2340, 2535, 2704, 3042, 3120, 3380, 3744, 4056, 4680, 5070, 5408, 6084, 6240, 6760, 7605, 8112, 9360, 10140, 12168, 13520, 15210, 16224, 18720, 20280, 24336, 27040, 30420, 40560, 48672, 60840, 81120, 87973, 121680, 175946, 243360, 263919, 351892, 439865, 527838, 703784, 791757, 879730, 1055676, 1143649, 1319595, 1407568, 1583514, 1759460, 2111352, 2287298, 2639190, 2815136, 3167028, 3430947, 3518920, 3958785, 4222704, 4574596, 5278380, 5718245, 6334056, 6861894, 7037840, 7917570, 8445408, 9149192, 10292841, 10556760, 11436490, 12668112, 13723788, 14075680, 14867437, 15835140, 17154735, 18298384, 20585682, 21113520, 22872980, 25336224, 27447576, 29734874, 31670280, 34309470, 36596768, 41171364, 42227040, 44602311, 45745960, 51464205, 54895152, 59469748, 63340560, 68618940, 74337185, 82342728, 89204622, 91491920, 102928410, 109790304, 118939496, 126681120, 133806933, 137237880, 148674370, 164685456, 178409244, 182983840, 205856820, 223011555, 237878992, 267613866, 274475760, 297348740, 329370912, 356818488, 411713640, 446023110, 475757984, 535227732, 548951520, 594697480, 669034665, 713636976, 823427280, 892046220, 1070455464, 1189394960, 1338069330, 1427273952, 1646854560, 1784092440, 2140910928, 2378789920, 2676138660, 3568184880, 4281821856, 5352277320, 7136369760, 10704554640, 21409109280]

約数ペア:

[(1, 21409109280), (2, 10704554640), (3, 7136369760), (4, 5352277320), (5, 4281821856), (6, 3568184880), (8, 2676138660), (9, 2378789920), (10, 2140910928), (12, 1784092440), (13, 1646854560), (15, 1427273952), (16, 1338069330), (18, 1189394960), (20, 1070455464), (24, 892046220), (26, 823427280), (30, 713636976), (32, 669034665), (36, 594697480), (39, 548951520), (40, 535227732), (45, 475757984), (48, 446023110), (52, 411713640), (60, 356818488), (65, 329370912), (72, 297348740), (78, 274475760), (80, 267613866), (90, 237878992), (96, 223011555), (104, 205856820), (117, 182983840), (120, 178409244), (130, 164685456), (144, 148674370), (156, 137237880), (160, 133806933), (169, 126681120), (180, 118939496), (195, 109790304), (208, 102928410), (234, 91491920), (240, 89204622), (260, 82342728), (288, 74337185), (312, 68618940), (338, 63340560), (360, 59469748), (390, 54895152), (416, 51464205), (468, 45745960), (480, 44602311), (507, 42227040), (520, 41171364), (585, 36596768), (624, 34309470), (676, 31670280), (720, 29734874), (780, 27447576), (845, 25336224), (936, 22872980), (1014, 21113520), (1040, 20585682), (1170, 18298384), (1248, 17154735), (1352, 15835140), (1440, 14867437), (1521, 14075680), (1560, 13723788), (1690, 12668112), (1872, 11436490), (2028, 10556760), (2080, 10292841), (2340, 9149192), (2535, 8445408), (2704, 7917570), (3042, 7037840), (3120, 6861894), (3380, 6334056), (3744, 5718245), (4056, 5278380), (4680, 4574596), (5070, 4222704), (5408, 3958785), (6084, 3518920), (6240, 3430947), (6760, 3167028), (7605, 2815136), (8112, 2639190), (9360, 2287298), (10140, 2111352), (12168, 1759460), (13520, 1583514), (15210, 1407568), (16224, 1319595), (18720, 1143649), (20280, 1055676), (24336, 879730), (27040, 791757), (30420, 703784), (40560, 527838), (48672, 439865), (60840, 351892), (81120, 263919), (87973, 243360), (121680, 175946)]