20885760

素因数分解:

$2^8\times 3^2\times 5^1\times 7^2\times {\mathrm{37}}^1$

素因数の和:78

約数の個数: 324

約数和(自身を含む): 86332428

約数和(自身を除く): 65446668

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 37, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 74, 80, 84, 90, 96, 98, 105, 111, 112, 120, 126, 128, 140, 144, 147, 148, 160, 168, 180, 185, 192, 196, 210, 222, 224, 240, 245, 252, 256, 259, 280, 288, 294, 296, 315, 320, 333, 336, 360, 370, 384, 392, 420, 441, 444, 448, 480, 490, 504, 518, 555, 560, 576, 588, 592, 630, 640, 666, 672, 720, 735, 740, 768, 777, 784, 840, 882, 888, 896, 960, 980, 1008, 1036, 1110, 1120, 1152, 1176, 1184, 1260, 1280, 1295, 1332, 1344, 1440, 1470, 1480, 1554, 1568, 1665, 1680, 1764, 1776, 1792, 1813, 1920, 1960, 2016, 2072, 2205, 2220, 2240, 2304, 2331, 2352, 2368, 2520, 2590, 2664, 2688, 2880, 2940, 2960, 3108, 3136, 3330, 3360, 3528, 3552, 3626, 3840, 3885, 3920, 4032, 4144, 4410, 4440, 4480, 4662, 4704, 4736, 5040, 5180, 5328, 5376, 5439, 5760, 5880, 5920, 6216, 6272, 6660, 6720, 7056, 7104, 7252, 7770, 7840, 8064, 8288, 8820, 8880, 8960, 9065, 9324, 9408, 9472, 10080, 10360, 10656, 10878, 11520, 11655, 11760, 11840, 12432, 12544, 13320, 13440, 14112, 14208, 14504, 15540, 15680, 16128, 16317, 16576, 17640, 17760, 18130, 18648, 18816, 20160, 20720, 21312, 21756, 23310, 23520, 23680, 24864, 26640, 26880, 27195, 28224, 28416, 29008, 31080, 31360, 32634, 33152, 35280, 35520, 36260, 37296, 37632, 40320, 41440, 42624, 43512, 46620, 47040, 47360, 49728, 53280, 54390, 56448, 58016, 62160, 62720, 65268, 66304, 70560, 71040, 72520, 74592, 80640, 81585, 82880, 85248, 87024, 93240, 94080, 99456, 106560, 108780, 112896, 116032, 124320, 130536, 141120, 142080, 145040, 149184, 163170, 165760, 174048, 186480, 188160, 198912, 213120, 217560, 232064, 248640, 261072, 282240, 290080, 298368, 326340, 331520, 348096, 372960, 426240, 435120, 464128, 497280, 522144, 564480, 580160, 596736, 652680, 696192, 745920, 870240, 994560, 1044288, 1160320, 1305360, 1392384, 1491840, 1740480, 2088576, 2320640, 2610720, 2983680, 3480960, 4177152, 5221440, 6961920, 10442880, 20885760]

約数ペア:

[(1, 20885760), (2, 10442880), (3, 6961920), (4, 5221440), (5, 4177152), (6, 3480960), (7, 2983680), (8, 2610720), (9, 2320640), (10, 2088576), (12, 1740480), (14, 1491840), (15, 1392384), (16, 1305360), (18, 1160320), (20, 1044288), (21, 994560), (24, 870240), (28, 745920), (30, 696192), (32, 652680), (35, 596736), (36, 580160), (37, 564480), (40, 522144), (42, 497280), (45, 464128), (48, 435120), (49, 426240), (56, 372960), (60, 348096), (63, 331520), (64, 326340), (70, 298368), (72, 290080), (74, 282240), (80, 261072), (84, 248640), (90, 232064), (96, 217560), (98, 213120), (105, 198912), (111, 188160), (112, 186480), (120, 174048), (126, 165760), (128, 163170), (140, 149184), (144, 145040), (147, 142080), (148, 141120), (160, 130536), (168, 124320), (180, 116032), (185, 112896), (192, 108780), (196, 106560), (210, 99456), (222, 94080), (224, 93240), (240, 87024), (245, 85248), (252, 82880), (256, 81585), (259, 80640), (280, 74592), (288, 72520), (294, 71040), (296, 70560), (315, 66304), (320, 65268), (333, 62720), (336, 62160), (360, 58016), (370, 56448), (384, 54390), (392, 53280), (420, 49728), (441, 47360), (444, 47040), (448, 46620), (480, 43512), (490, 42624), (504, 41440), (518, 40320), (555, 37632), (560, 37296), (576, 36260), (588, 35520), (592, 35280), (630, 33152), (640, 32634), (666, 31360), (672, 31080), (720, 29008), (735, 28416), (740, 28224), (768, 27195), (777, 26880), (784, 26640), (840, 24864), (882, 23680), (888, 23520), (896, 23310), (960, 21756), (980, 21312), (1008, 20720), (1036, 20160), (1110, 18816), (1120, 18648), (1152, 18130), (1176, 17760), (1184, 17640), (1260, 16576), (1280, 16317), (1295, 16128), (1332, 15680), (1344, 15540), (1440, 14504), (1470, 14208), (1480, 14112), (1554, 13440), (1568, 13320), (1665, 12544), (1680, 12432), (1764, 11840), (1776, 11760), (1792, 11655), (1813, 11520), (1920, 10878), (1960, 10656), (2016, 10360), (2072, 10080), (2205, 9472), (2220, 9408), (2240, 9324), (2304, 9065), (2331, 8960), (2352, 8880), (2368, 8820), (2520, 8288), (2590, 8064), (2664, 7840), (2688, 7770), (2880, 7252), (2940, 7104), (2960, 7056), (3108, 6720), (3136, 6660), (3330, 6272), (3360, 6216), (3528, 5920), (3552, 5880), (3626, 5760), (3840, 5439), (3885, 5376), (3920, 5328), (4032, 5180), (4144, 5040), (4410, 4736), (4440, 4704), (4480, 4662)]