21229126880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1\times {\mathrm{439}}^1$

素因数の和:881

約数の個数: 192

約数和(自身を含む): 55101150720

約数和(自身を除く): 33872023840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 67, 80, 104, 130, 134, 160, 208, 260, 268, 335, 347, 416, 439, 520, 536, 670, 694, 871, 878, 1040, 1072, 1340, 1388, 1735, 1742, 1756, 2080, 2144, 2195, 2680, 2776, 3470, 3484, 3512, 4355, 4390, 4511, 5360, 5552, 5707, 6940, 6968, 7024, 8710, 8780, 9022, 10720, 11104, 11414, 13880, 13936, 14048, 17420, 17560, 18044, 22555, 22828, 23249, 27760, 27872, 28535, 29413, 34840, 35120, 36088, 45110, 45656, 46498, 55520, 57070, 58826, 69680, 70240, 72176, 90220, 91312, 92996, 114140, 116245, 117652, 139360, 144352, 147065, 152333, 180440, 182624, 185992, 228280, 232490, 235304, 294130, 302237, 304666, 360880, 371984, 382369, 456560, 464980, 470608, 588260, 604474, 609332, 721760, 743968, 761665, 764738, 913120, 929960, 941216, 1176520, 1208948, 1218664, 1511185, 1523330, 1529476, 1859920, 1911845, 1980329, 2353040, 2417896, 2437328, 3022370, 3046660, 3058952, 3719840, 3823690, 3960658, 4706080, 4835792, 4874656, 6044740, 6093320, 6117904, 7647380, 7921316, 9671584, 9901645, 10206311, 12089480, 12186640, 12235808, 15294760, 15842632, 19803290, 20412622, 24178960, 24373280, 30589520, 31685264, 39606580, 40825244, 48357920, 51031555, 61179040, 63370528, 79213160, 81650488, 102063110, 132682043, 158426320, 163300976, 204126220, 265364086, 316852640, 326601952, 408252440, 530728172, 663410215, 816504880, 1061456344, 1326820430, 1633009760, 2122912688, 2653640860, 4245825376, 5307281720, 10614563440, 21229126880]

約数ペア:

[(1, 21229126880), (2, 10614563440), (4, 5307281720), (5, 4245825376), (8, 2653640860), (10, 2122912688), (13, 1633009760), (16, 1326820430), (20, 1061456344), (26, 816504880), (32, 663410215), (40, 530728172), (52, 408252440), (65, 326601952), (67, 316852640), (80, 265364086), (104, 204126220), (130, 163300976), (134, 158426320), (160, 132682043), (208, 102063110), (260, 81650488), (268, 79213160), (335, 63370528), (347, 61179040), (416, 51031555), (439, 48357920), (520, 40825244), (536, 39606580), (670, 31685264), (694, 30589520), (871, 24373280), (878, 24178960), (1040, 20412622), (1072, 19803290), (1340, 15842632), (1388, 15294760), (1735, 12235808), (1742, 12186640), (1756, 12089480), (2080, 10206311), (2144, 9901645), (2195, 9671584), (2680, 7921316), (2776, 7647380), (3470, 6117904), (3484, 6093320), (3512, 6044740), (4355, 4874656), (4390, 4835792), (4511, 4706080), (5360, 3960658), (5552, 3823690), (5707, 3719840), (6940, 3058952), (6968, 3046660), (7024, 3022370), (8710, 2437328), (8780, 2417896), (9022, 2353040), (10720, 1980329), (11104, 1911845), (11414, 1859920), (13880, 1529476), (13936, 1523330), (14048, 1511185), (17420, 1218664), (17560, 1208948), (18044, 1176520), (22555, 941216), (22828, 929960), (23249, 913120), (27760, 764738), (27872, 761665), (28535, 743968), (29413, 721760), (34840, 609332), (35120, 604474), (36088, 588260), (45110, 470608), (45656, 464980), (46498, 456560), (55520, 382369), (57070, 371984), (58826, 360880), (69680, 304666), (70240, 302237), (72176, 294130), (90220, 235304), (91312, 232490), (92996, 228280), (114140, 185992), (116245, 182624), (117652, 180440), (139360, 152333), (144352, 147065)]