1320550400

素因数分解:

$2^{17}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 216

約数和(自身を含む): 3640641984

約数和(自身を除く): 2320091584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 64, 65, 80, 100, 104, 124, 128, 130, 155, 160, 200, 208, 248, 256, 260, 310, 320, 325, 400, 403, 416, 496, 512, 520, 620, 640, 650, 775, 800, 806, 832, 992, 1024, 1040, 1240, 1280, 1300, 1550, 1600, 1612, 1664, 1984, 2015, 2048, 2080, 2480, 2560, 2600, 3100, 3200, 3224, 3328, 3968, 4030, 4096, 4160, 4960, 5120, 5200, 6200, 6400, 6448, 6656, 7936, 8060, 8192, 8320, 9920, 10075, 10240, 10400, 12400, 12800, 12896, 13312, 15872, 16120, 16384, 16640, 19840, 20150, 20480, 20800, 24800, 25600, 25792, 26624, 31744, 32240, 32768, 33280, 39680, 40300, 40960, 41600, 49600, 51200, 51584, 53248, 63488, 64480, 65536, 66560, 79360, 80600, 81920, 83200, 99200, 102400, 103168, 106496, 126976, 128960, 131072, 133120, 158720, 161200, 163840, 166400, 198400, 204800, 206336, 212992, 253952, 257920, 266240, 317440, 322400, 327680, 332800, 396800, 409600, 412672, 425984, 507904, 515840, 532480, 634880, 644800, 655360, 665600, 793600, 819200, 825344, 851968, 1015808, 1031680, 1064960, 1269760, 1289600, 1331200, 1587200, 1638400, 1650688, 1703936, 2031616, 2063360, 2129920, 2539520, 2579200, 2662400, 3174400, 3276800, 3301376, 4063232, 4126720, 4259840, 5079040, 5158400, 5324800, 6348800, 6602752, 8253440, 8519680, 10158080, 10316800, 10649600, 12697600, 13205504, 16506880, 20316160, 20633600, 21299200, 25395200, 26411008, 33013760, 41267200, 42598400, 50790400, 52822016, 66027520, 82534400, 101580800, 132055040, 165068800, 264110080, 330137600, 660275200, 1320550400]

約数ペア:

[(1, 1320550400), (2, 660275200), (4, 330137600), (5, 264110080), (8, 165068800), (10, 132055040), (13, 101580800), (16, 82534400), (20, 66027520), (25, 52822016), (26, 50790400), (31, 42598400), (32, 41267200), (40, 33013760), (50, 26411008), (52, 25395200), (62, 21299200), (64, 20633600), (65, 20316160), (80, 16506880), (100, 13205504), (104, 12697600), (124, 10649600), (128, 10316800), (130, 10158080), (155, 8519680), (160, 8253440), (200, 6602752), (208, 6348800), (248, 5324800), (256, 5158400), (260, 5079040), (310, 4259840), (320, 4126720), (325, 4063232), (400, 3301376), (403, 3276800), (416, 3174400), (496, 2662400), (512, 2579200), (520, 2539520), (620, 2129920), (640, 2063360), (650, 2031616), (775, 1703936), (800, 1650688), (806, 1638400), (832, 1587200), (992, 1331200), (1024, 1289600), (1040, 1269760), (1240, 1064960), (1280, 1031680), (1300, 1015808), (1550, 851968), (1600, 825344), (1612, 819200), (1664, 793600), (1984, 665600), (2015, 655360), (2048, 644800), (2080, 634880), (2480, 532480), (2560, 515840), (2600, 507904), (3100, 425984), (3200, 412672), (3224, 409600), (3328, 396800), (3968, 332800), (4030, 327680), (4096, 322400), (4160, 317440), (4960, 266240), (5120, 257920), (5200, 253952), (6200, 212992), (6400, 206336), (6448, 204800), (6656, 198400), (7936, 166400), (8060, 163840), (8192, 161200), (8320, 158720), (9920, 133120), (10075, 131072), (10240, 128960), (10400, 126976), (12400, 106496), (12800, 103168), (12896, 102400), (13312, 99200), (15872, 83200), (16120, 81920), (16384, 80600), (16640, 79360), (19840, 66560), (20150, 65536), (20480, 64480), (20800, 63488), (24800, 53248), (25600, 51584), (25792, 51200), (26624, 49600), (31744, 41600), (32240, 40960), (32768, 40300), (33280, 39680)]