1991799600

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7649}}^1$

素因数の和:7708

約数の個数: 240

約数和(自身を含む): 7528089600

約数和(自身を除く): 5536290000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 31, 35, 40, 42, 48, 50, 56, 60, 62, 70, 75, 80, 84, 93, 100, 105, 112, 120, 124, 140, 150, 155, 168, 175, 186, 200, 210, 217, 240, 248, 280, 300, 310, 336, 350, 372, 400, 420, 434, 465, 496, 525, 560, 600, 620, 651, 700, 744, 775, 840, 868, 930, 1050, 1085, 1200, 1240, 1302, 1400, 1488, 1550, 1680, 1736, 1860, 2100, 2170, 2325, 2480, 2604, 2800, 3100, 3255, 3472, 3720, 4200, 4340, 4650, 5208, 5425, 6200, 6510, 7440, 7649, 8400, 8680, 9300, 10416, 10850, 12400, 13020, 15298, 16275, 17360, 18600, 21700, 22947, 26040, 30596, 32550, 37200, 38245, 43400, 45894, 52080, 53543, 61192, 65100, 76490, 86800, 91788, 107086, 114735, 122384, 130200, 152980, 160629, 183576, 191225, 214172, 229470, 237119, 260400, 267715, 305960, 321258, 367152, 382450, 428344, 458940, 474238, 535430, 573675, 611920, 642516, 711357, 764900, 803145, 856688, 917880, 948476, 1070860, 1147350, 1185595, 1285032, 1338575, 1422714, 1529800, 1606290, 1659833, 1835760, 1896952, 2141720, 2294700, 2371190, 2570064, 2677150, 2845428, 3059600, 3212580, 3319666, 3556785, 3793904, 4015725, 4283440, 4589400, 4742380, 4979499, 5354300, 5690856, 5927975, 6425160, 6639332, 7113570, 8031450, 8299165, 9178800, 9484760, 9958998, 10708600, 11381712, 11855950, 12850320, 13278664, 14227140, 16062900, 16598330, 17783925, 18969520, 19917996, 21417200, 23711900, 24897495, 26557328, 28454280, 32125800, 33196660, 35567850, 39835992, 41495825, 47423800, 49794990, 56908560, 64251600, 66393320, 71135700, 79671984, 82991650, 94847600, 99589980, 124487475, 132786640, 142271400, 165983300, 199179960, 248974950, 284542800, 331966600, 398359920, 497949900, 663933200, 995899800, 1991799600]

約数ペア:

[(1, 1991799600), (2, 995899800), (3, 663933200), (4, 497949900), (5, 398359920), (6, 331966600), (7, 284542800), (8, 248974950), (10, 199179960), (12, 165983300), (14, 142271400), (15, 132786640), (16, 124487475), (20, 99589980), (21, 94847600), (24, 82991650), (25, 79671984), (28, 71135700), (30, 66393320), (31, 64251600), (35, 56908560), (40, 49794990), (42, 47423800), (48, 41495825), (50, 39835992), (56, 35567850), (60, 33196660), (62, 32125800), (70, 28454280), (75, 26557328), (80, 24897495), (84, 23711900), (93, 21417200), (100, 19917996), (105, 18969520), (112, 17783925), (120, 16598330), (124, 16062900), (140, 14227140), (150, 13278664), (155, 12850320), (168, 11855950), (175, 11381712), (186, 10708600), (200, 9958998), (210, 9484760), (217, 9178800), (240, 8299165), (248, 8031450), (280, 7113570), (300, 6639332), (310, 6425160), (336, 5927975), (350, 5690856), (372, 5354300), (400, 4979499), (420, 4742380), (434, 4589400), (465, 4283440), (496, 4015725), (525, 3793904), (560, 3556785), (600, 3319666), (620, 3212580), (651, 3059600), (700, 2845428), (744, 2677150), (775, 2570064), (840, 2371190), (868, 2294700), (930, 2141720), (1050, 1896952), (1085, 1835760), (1200, 1659833), (1240, 1606290), (1302, 1529800), (1400, 1422714), (1488, 1338575), (1550, 1285032), (1680, 1185595), (1736, 1147350), (1860, 1070860), (2100, 948476), (2170, 917880), (2325, 856688), (2480, 803145), (2604, 764900), (2800, 711357), (3100, 642516), (3255, 611920), (3472, 573675), (3720, 535430), (4200, 474238), (4340, 458940), (4650, 428344), (5208, 382450), (5425, 367152), (6200, 321258), (6510, 305960), (7440, 267715), (7649, 260400), (8400, 237119), (8680, 229470), (9300, 214172), (10416, 191225), (10850, 183576), (12400, 160629), (13020, 152980), (15298, 130200), (16275, 122384), (17360, 114735), (18600, 107086), (21700, 91788), (22947, 86800), (26040, 76490), (30596, 65100), (32550, 61192), (37200, 53543), (38245, 52080), (43400, 45894)]