20709559920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{56807}}^1$

素因数の和:56868

約数の個数: 240

約数和(自身を含む): 77091637248

約数和(自身を除く): 56382077328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 49, 56, 60, 62, 70, 80, 84, 93, 98, 105, 112, 120, 124, 140, 147, 155, 168, 186, 196, 210, 217, 240, 245, 248, 280, 294, 310, 336, 372, 392, 420, 434, 465, 490, 496, 560, 588, 620, 651, 735, 744, 784, 840, 868, 930, 980, 1085, 1176, 1240, 1302, 1470, 1488, 1519, 1680, 1736, 1860, 1960, 2170, 2352, 2480, 2604, 2940, 3038, 3255, 3472, 3720, 3920, 4340, 4557, 5208, 5880, 6076, 6510, 7440, 7595, 8680, 9114, 10416, 11760, 12152, 13020, 15190, 17360, 18228, 22785, 24304, 26040, 30380, 36456, 45570, 52080, 56807, 60760, 72912, 91140, 113614, 121520, 170421, 182280, 227228, 284035, 340842, 364560, 397649, 454456, 568070, 681684, 795298, 852105, 908912, 1136140, 1192947, 1363368, 1590596, 1704210, 1761017, 1988245, 2272280, 2385894, 2726736, 2783543, 3181192, 3408420, 3522034, 3976490, 4544560, 4771788, 5283051, 5567086, 5964735, 6362384, 6816840, 7044068, 7952980, 8350629, 8805085, 9543576, 10566102, 11134172, 11929470, 12327119, 13633680, 13917715, 14088136, 15905960, 16701258, 17610170, 19087152, 21132204, 22268344, 23858940, 24654238, 26415255, 27835430, 28176272, 31811920, 33402516, 35220340, 36981357, 41753145, 42264408, 44536688, 47717880, 49308476, 52830510, 55670860, 61635595, 66805032, 70440680, 73962714, 83506290, 84528816, 86289833, 95435760, 98616952, 105661020, 111341720, 123271190, 133610064, 140881360, 147925428, 167012580, 172579666, 184906785, 197233904, 211322040, 222683440, 246542380, 258869499, 295850856, 334025160, 345159332, 369813570, 422644080, 431449165, 493084760, 517738998, 591701712, 668050320, 690318664, 739627140, 862898330, 986169520, 1035477996, 1294347495, 1380637328, 1479254280, 1725796660, 2070955992, 2588694990, 2958508560, 3451593320, 4141911984, 5177389980, 6903186640, 10354779960, 20709559920]

約数ペア:

[(1, 20709559920), (2, 10354779960), (3, 6903186640), (4, 5177389980), (5, 4141911984), (6, 3451593320), (7, 2958508560), (8, 2588694990), (10, 2070955992), (12, 1725796660), (14, 1479254280), (15, 1380637328), (16, 1294347495), (20, 1035477996), (21, 986169520), (24, 862898330), (28, 739627140), (30, 690318664), (31, 668050320), (35, 591701712), (40, 517738998), (42, 493084760), (48, 431449165), (49, 422644080), (56, 369813570), (60, 345159332), (62, 334025160), (70, 295850856), (80, 258869499), (84, 246542380), (93, 222683440), (98, 211322040), (105, 197233904), (112, 184906785), (120, 172579666), (124, 167012580), (140, 147925428), (147, 140881360), (155, 133610064), (168, 123271190), (186, 111341720), (196, 105661020), (210, 98616952), (217, 95435760), (240, 86289833), (245, 84528816), (248, 83506290), (280, 73962714), (294, 70440680), (310, 66805032), (336, 61635595), (372, 55670860), (392, 52830510), (420, 49308476), (434, 47717880), (465, 44536688), (490, 42264408), (496, 41753145), (560, 36981357), (588, 35220340), (620, 33402516), (651, 31811920), (735, 28176272), (744, 27835430), (784, 26415255), (840, 24654238), (868, 23858940), (930, 22268344), (980, 21132204), (1085, 19087152), (1176, 17610170), (1240, 16701258), (1302, 15905960), (1470, 14088136), (1488, 13917715), (1519, 13633680), (1680, 12327119), (1736, 11929470), (1860, 11134172), (1960, 10566102), (2170, 9543576), (2352, 8805085), (2480, 8350629), (2604, 7952980), (2940, 7044068), (3038, 6816840), (3255, 6362384), (3472, 5964735), (3720, 5567086), (3920, 5283051), (4340, 4771788), (4557, 4544560), (5208, 3976490), (5880, 3522034), (6076, 3408420), (6510, 3181192), (7440, 2783543), (7595, 2726736), (8680, 2385894), (9114, 2272280), (10416, 1988245), (11760, 1761017), (12152, 1704210), (13020, 1590596), (15190, 1363368), (17360, 1192947), (18228, 1136140), (22785, 908912), (24304, 852105), (26040, 795298), (30380, 681684), (36456, 568070), (45570, 454456), (52080, 397649), (56807, 364560), (60760, 340842), (72912, 284035), (91140, 227228), (113614, 182280), (121520, 170421)]