71401680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:514

約数の個数: 240

約数和(自身を含む): 283505664

約数和(自身を除く): 212103984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 279, 280, 310, 315, 336, 360, 372, 420, 434, 457, 465, 496, 504, 558, 560, 620, 630, 651, 720, 744, 840, 868, 914, 930, 1008, 1085, 1116, 1240, 1260, 1302, 1371, 1395, 1488, 1680, 1736, 1828, 1860, 1953, 2170, 2232, 2285, 2480, 2520, 2604, 2742, 2790, 3199, 3255, 3472, 3656, 3720, 3906, 4113, 4340, 4464, 4570, 5040, 5208, 5484, 5580, 6398, 6510, 6855, 7312, 7440, 7812, 8226, 8680, 9140, 9597, 9765, 10416, 10968, 11160, 12796, 13020, 13710, 14167, 15624, 15995, 16452, 17360, 18280, 19194, 19530, 20565, 21936, 22320, 25592, 26040, 27420, 28334, 28791, 31248, 31990, 32904, 36560, 38388, 39060, 41130, 42501, 47985, 51184, 52080, 54840, 56668, 57582, 63980, 65808, 70835, 76776, 78120, 82260, 85002, 95970, 99169, 109680, 113336, 115164, 127503, 127960, 141670, 143955, 153552, 156240, 164520, 170004, 191940, 198338, 212505, 226672, 230328, 255006, 255920, 283340, 287910, 297507, 329040, 340008, 383880, 396676, 425010, 460656, 495845, 510012, 566680, 575820, 595014, 637515, 680016, 767760, 793352, 850020, 892521, 991690, 1020024, 1133360, 1151640, 1190028, 1275030, 1487535, 1586704, 1700040, 1785042, 1983380, 2040048, 2303280, 2380056, 2550060, 2975070, 3400080, 3570084, 3966760, 4462605, 4760112, 5100120, 5950140, 7140168, 7933520, 8925210, 10200240, 11900280, 14280336, 17850420, 23800560, 35700840, 71401680]

約数ペア:

[(1, 71401680), (2, 35700840), (3, 23800560), (4, 17850420), (5, 14280336), (6, 11900280), (7, 10200240), (8, 8925210), (9, 7933520), (10, 7140168), (12, 5950140), (14, 5100120), (15, 4760112), (16, 4462605), (18, 3966760), (20, 3570084), (21, 3400080), (24, 2975070), (28, 2550060), (30, 2380056), (31, 2303280), (35, 2040048), (36, 1983380), (40, 1785042), (42, 1700040), (45, 1586704), (48, 1487535), (56, 1275030), (60, 1190028), (62, 1151640), (63, 1133360), (70, 1020024), (72, 991690), (80, 892521), (84, 850020), (90, 793352), (93, 767760), (105, 680016), (112, 637515), (120, 595014), (124, 575820), (126, 566680), (140, 510012), (144, 495845), (155, 460656), (168, 425010), (180, 396676), (186, 383880), (210, 340008), (217, 329040), (240, 297507), (248, 287910), (252, 283340), (279, 255920), (280, 255006), (310, 230328), (315, 226672), (336, 212505), (360, 198338), (372, 191940), (420, 170004), (434, 164520), (457, 156240), (465, 153552), (496, 143955), (504, 141670), (558, 127960), (560, 127503), (620, 115164), (630, 113336), (651, 109680), (720, 99169), (744, 95970), (840, 85002), (868, 82260), (914, 78120), (930, 76776), (1008, 70835), (1085, 65808), (1116, 63980), (1240, 57582), (1260, 56668), (1302, 54840), (1371, 52080), (1395, 51184), (1488, 47985), (1680, 42501), (1736, 41130), (1828, 39060), (1860, 38388), (1953, 36560), (2170, 32904), (2232, 31990), (2285, 31248), (2480, 28791), (2520, 28334), (2604, 27420), (2742, 26040), (2790, 25592), (3199, 22320), (3255, 21936), (3472, 20565), (3656, 19530), (3720, 19194), (3906, 18280), (4113, 17360), (4340, 16452), (4464, 15995), (4570, 15624), (5040, 14167), (5208, 13710), (5484, 13020), (5580, 12796), (6398, 11160), (6510, 10968), (6855, 10416), (7312, 9765), (7440, 9597), (7812, 9140), (8226, 8680)]