21010080

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:88

約数の個数: 288

約数和(自身を含む): 84115584

約数和(自身を除く): 63105504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 37, 39, 40, 42, 48, 52, 56, 60, 65, 70, 74, 78, 80, 84, 91, 96, 104, 105, 111, 112, 120, 130, 140, 148, 156, 160, 168, 169, 182, 185, 195, 208, 210, 222, 224, 240, 259, 260, 273, 280, 296, 312, 336, 338, 364, 370, 390, 416, 420, 444, 455, 480, 481, 507, 518, 520, 546, 555, 560, 592, 624, 672, 676, 728, 740, 777, 780, 840, 845, 888, 910, 962, 1014, 1036, 1040, 1092, 1110, 1120, 1183, 1184, 1248, 1295, 1352, 1365, 1443, 1456, 1480, 1554, 1560, 1680, 1690, 1776, 1820, 1924, 2028, 2072, 2080, 2184, 2220, 2366, 2405, 2535, 2590, 2704, 2730, 2886, 2912, 2960, 3108, 3120, 3360, 3367, 3380, 3549, 3552, 3640, 3848, 3885, 4056, 4144, 4368, 4440, 4732, 4810, 5070, 5180, 5408, 5460, 5772, 5915, 5920, 6216, 6240, 6253, 6734, 6760, 7098, 7215, 7280, 7696, 7770, 8112, 8288, 8736, 8880, 9464, 9620, 10101, 10140, 10360, 10920, 11544, 11830, 12432, 12506, 13468, 13520, 14196, 14430, 14560, 15392, 15540, 16224, 16835, 17745, 17760, 18759, 18928, 19240, 20202, 20280, 20720, 21840, 23088, 23660, 24864, 25012, 26936, 27040, 28392, 28860, 31080, 31265, 33670, 35490, 37518, 37856, 38480, 40404, 40560, 41440, 43680, 43771, 46176, 47320, 50024, 50505, 53872, 56784, 57720, 62160, 62530, 67340, 70980, 75036, 76960, 80808, 81120, 87542, 93795, 94640, 100048, 101010, 107744, 113568, 115440, 124320, 125060, 131313, 134680, 141960, 150072, 161616, 175084, 187590, 189280, 200096, 202020, 218855, 230880, 250120, 262626, 269360, 283920, 300144, 323232, 350168, 375180, 404040, 437710, 500240, 525252, 538720, 567840, 600288, 656565, 700336, 750360, 808080, 875420, 1000480, 1050504, 1313130, 1400672, 1500720, 1616160, 1750840, 2101008, 2626260, 3001440, 3501680, 4202016, 5252520, 7003360, 10505040, 21010080]

約数ペア:

[(1, 21010080), (2, 10505040), (3, 7003360), (4, 5252520), (5, 4202016), (6, 3501680), (7, 3001440), (8, 2626260), (10, 2101008), (12, 1750840), (13, 1616160), (14, 1500720), (15, 1400672), (16, 1313130), (20, 1050504), (21, 1000480), (24, 875420), (26, 808080), (28, 750360), (30, 700336), (32, 656565), (35, 600288), (37, 567840), (39, 538720), (40, 525252), (42, 500240), (48, 437710), (52, 404040), (56, 375180), (60, 350168), (65, 323232), (70, 300144), (74, 283920), (78, 269360), (80, 262626), (84, 250120), (91, 230880), (96, 218855), (104, 202020), (105, 200096), (111, 189280), (112, 187590), (120, 175084), (130, 161616), (140, 150072), (148, 141960), (156, 134680), (160, 131313), (168, 125060), (169, 124320), (182, 115440), (185, 113568), (195, 107744), (208, 101010), (210, 100048), (222, 94640), (224, 93795), (240, 87542), (259, 81120), (260, 80808), (273, 76960), (280, 75036), (296, 70980), (312, 67340), (336, 62530), (338, 62160), (364, 57720), (370, 56784), (390, 53872), (416, 50505), (420, 50024), (444, 47320), (455, 46176), (480, 43771), (481, 43680), (507, 41440), (518, 40560), (520, 40404), (546, 38480), (555, 37856), (560, 37518), (592, 35490), (624, 33670), (672, 31265), (676, 31080), (728, 28860), (740, 28392), (777, 27040), (780, 26936), (840, 25012), (845, 24864), (888, 23660), (910, 23088), (962, 21840), (1014, 20720), (1036, 20280), (1040, 20202), (1092, 19240), (1110, 18928), (1120, 18759), (1183, 17760), (1184, 17745), (1248, 16835), (1295, 16224), (1352, 15540), (1365, 15392), (1443, 14560), (1456, 14430), (1480, 14196), (1554, 13520), (1560, 13468), (1680, 12506), (1690, 12432), (1776, 11830), (1820, 11544), (1924, 10920), (2028, 10360), (2072, 10140), (2080, 10101), (2184, 9620), (2220, 9464), (2366, 8880), (2405, 8736), (2535, 8288), (2590, 8112), (2704, 7770), (2730, 7696), (2886, 7280), (2912, 7215), (2960, 7098), (3108, 6760), (3120, 6734), (3360, 6253), (3367, 6240), (3380, 6216), (3549, 5920), (3552, 5915), (3640, 5772), (3848, 5460), (3885, 5408), (4056, 5180), (4144, 5070), (4368, 4810), (4440, 4732)]