217201920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:285

約数の個数: 288

約数和(自身を含む): 789801600

約数和(自身を除く): 572599680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 32, 38, 39, 40, 48, 52, 57, 60, 64, 65, 76, 78, 80, 95, 96, 104, 114, 120, 128, 130, 152, 156, 160, 190, 192, 195, 208, 228, 229, 240, 247, 256, 260, 285, 304, 312, 320, 380, 384, 390, 416, 456, 458, 480, 494, 520, 570, 608, 624, 640, 687, 741, 760, 768, 780, 832, 912, 916, 960, 988, 1040, 1140, 1145, 1216, 1235, 1248, 1280, 1374, 1482, 1520, 1560, 1664, 1824, 1832, 1920, 1976, 2080, 2280, 2290, 2432, 2470, 2496, 2748, 2964, 2977, 3040, 3120, 3328, 3435, 3648, 3664, 3705, 3840, 3952, 4160, 4351, 4560, 4580, 4864, 4940, 4992, 5496, 5928, 5954, 6080, 6240, 6870, 7296, 7328, 7410, 7904, 8320, 8702, 8931, 9120, 9160, 9880, 9984, 10992, 11856, 11908, 12160, 12480, 13053, 13740, 14592, 14656, 14820, 14885, 15808, 16640, 17404, 17862, 18240, 18320, 19760, 21755, 21984, 23712, 23816, 24320, 24960, 26106, 27480, 29312, 29640, 29770, 31616, 34808, 35724, 36480, 36640, 39520, 43510, 43968, 44655, 47424, 47632, 49920, 52212, 54960, 56563, 58624, 59280, 59540, 63232, 65265, 69616, 71448, 72960, 73280, 79040, 87020, 87936, 89310, 94848, 95264, 104424, 109920, 113126, 118560, 119080, 130530, 139232, 142896, 146560, 158080, 169689, 174040, 175872, 178620, 189696, 190528, 208848, 219840, 226252, 237120, 238160, 261060, 278464, 282815, 285792, 293120, 316160, 339378, 348080, 357240, 381056, 417696, 439680, 452504, 474240, 476320, 522120, 556928, 565630, 571584, 678756, 696160, 714480, 762112, 835392, 848445, 879360, 905008, 948480, 952640, 1044240, 1113856, 1131260, 1143168, 1357512, 1392320, 1428960, 1670784, 1696890, 1810016, 1905280, 2088480, 2262520, 2286336, 2715024, 2784640, 2857920, 3341568, 3393780, 3620032, 3810560, 4176960, 4525040, 5430048, 5569280, 5715840, 6787560, 7240064, 8353920, 9050080, 10860096, 11431680, 13575120, 14480128, 16707840, 18100160, 21720192, 27150240, 36200320, 43440384, 54300480, 72400640, 108600960, 217201920]

約数ペア:

[(1, 217201920), (2, 108600960), (3, 72400640), (4, 54300480), (5, 43440384), (6, 36200320), (8, 27150240), (10, 21720192), (12, 18100160), (13, 16707840), (15, 14480128), (16, 13575120), (19, 11431680), (20, 10860096), (24, 9050080), (26, 8353920), (30, 7240064), (32, 6787560), (38, 5715840), (39, 5569280), (40, 5430048), (48, 4525040), (52, 4176960), (57, 3810560), (60, 3620032), (64, 3393780), (65, 3341568), (76, 2857920), (78, 2784640), (80, 2715024), (95, 2286336), (96, 2262520), (104, 2088480), (114, 1905280), (120, 1810016), (128, 1696890), (130, 1670784), (152, 1428960), (156, 1392320), (160, 1357512), (190, 1143168), (192, 1131260), (195, 1113856), (208, 1044240), (228, 952640), (229, 948480), (240, 905008), (247, 879360), (256, 848445), (260, 835392), (285, 762112), (304, 714480), (312, 696160), (320, 678756), (380, 571584), (384, 565630), (390, 556928), (416, 522120), (456, 476320), (458, 474240), (480, 452504), (494, 439680), (520, 417696), (570, 381056), (608, 357240), (624, 348080), (640, 339378), (687, 316160), (741, 293120), (760, 285792), (768, 282815), (780, 278464), (832, 261060), (912, 238160), (916, 237120), (960, 226252), (988, 219840), (1040, 208848), (1140, 190528), (1145, 189696), (1216, 178620), (1235, 175872), (1248, 174040), (1280, 169689), (1374, 158080), (1482, 146560), (1520, 142896), (1560, 139232), (1664, 130530), (1824, 119080), (1832, 118560), (1920, 113126), (1976, 109920), (2080, 104424), (2280, 95264), (2290, 94848), (2432, 89310), (2470, 87936), (2496, 87020), (2748, 79040), (2964, 73280), (2977, 72960), (3040, 71448), (3120, 69616), (3328, 65265), (3435, 63232), (3648, 59540), (3664, 59280), (3705, 58624), (3840, 56563), (3952, 54960), (4160, 52212), (4351, 49920), (4560, 47632), (4580, 47424), (4864, 44655), (4940, 43968), (4992, 43510), (5496, 39520), (5928, 36640), (5954, 36480), (6080, 35724), (6240, 34808), (6870, 31616), (7296, 29770), (7328, 29640), (7410, 29312), (7904, 27480), (8320, 26106), (8702, 24960), (8931, 24320), (9120, 23816), (9160, 23712), (9880, 21984), (9984, 21755), (10992, 19760), (11856, 18320), (11908, 18240), (12160, 17862), (12480, 17404), (13053, 16640), (13740, 15808), (14592, 14885), (14656, 14820)]