81838080

素因数分解:

$2^{14}\times 3^3\times 5^1\times {\mathrm{37}}^1$

素因数の和:79

約数の個数: 240

約数和(自身を含む): 298835040

約数和(自身を除く): 216996960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 64, 72, 74, 80, 90, 96, 108, 111, 120, 128, 135, 144, 148, 160, 180, 185, 192, 216, 222, 240, 256, 270, 288, 296, 320, 333, 360, 370, 384, 432, 444, 480, 512, 540, 555, 576, 592, 640, 666, 720, 740, 768, 864, 888, 960, 999, 1024, 1080, 1110, 1152, 1184, 1280, 1332, 1440, 1480, 1536, 1665, 1728, 1776, 1920, 1998, 2048, 2160, 2220, 2304, 2368, 2560, 2664, 2880, 2960, 3072, 3330, 3456, 3552, 3840, 3996, 4096, 4320, 4440, 4608, 4736, 4995, 5120, 5328, 5760, 5920, 6144, 6660, 6912, 7104, 7680, 7992, 8192, 8640, 8880, 9216, 9472, 9990, 10240, 10656, 11520, 11840, 12288, 13320, 13824, 14208, 15360, 15984, 16384, 17280, 17760, 18432, 18944, 19980, 20480, 21312, 23040, 23680, 24576, 26640, 27648, 28416, 30720, 31968, 34560, 35520, 36864, 37888, 39960, 40960, 42624, 46080, 47360, 49152, 53280, 55296, 56832, 61440, 63936, 69120, 71040, 73728, 75776, 79920, 81920, 85248, 92160, 94720, 106560, 110592, 113664, 122880, 127872, 138240, 142080, 147456, 151552, 159840, 170496, 184320, 189440, 213120, 221184, 227328, 245760, 255744, 276480, 284160, 303104, 319680, 340992, 368640, 378880, 426240, 442368, 454656, 511488, 552960, 568320, 606208, 639360, 681984, 737280, 757760, 852480, 909312, 1022976, 1105920, 1136640, 1278720, 1363968, 1515520, 1704960, 1818624, 2045952, 2211840, 2273280, 2557440, 2727936, 3031040, 3409920, 4091904, 4546560, 5114880, 5455872, 6819840, 8183808, 9093120, 10229760, 13639680, 16367616, 20459520, 27279360, 40919040, 81838080]

約数ペア:

[(1, 81838080), (2, 40919040), (3, 27279360), (4, 20459520), (5, 16367616), (6, 13639680), (8, 10229760), (9, 9093120), (10, 8183808), (12, 6819840), (15, 5455872), (16, 5114880), (18, 4546560), (20, 4091904), (24, 3409920), (27, 3031040), (30, 2727936), (32, 2557440), (36, 2273280), (37, 2211840), (40, 2045952), (45, 1818624), (48, 1704960), (54, 1515520), (60, 1363968), (64, 1278720), (72, 1136640), (74, 1105920), (80, 1022976), (90, 909312), (96, 852480), (108, 757760), (111, 737280), (120, 681984), (128, 639360), (135, 606208), (144, 568320), (148, 552960), (160, 511488), (180, 454656), (185, 442368), (192, 426240), (216, 378880), (222, 368640), (240, 340992), (256, 319680), (270, 303104), (288, 284160), (296, 276480), (320, 255744), (333, 245760), (360, 227328), (370, 221184), (384, 213120), (432, 189440), (444, 184320), (480, 170496), (512, 159840), (540, 151552), (555, 147456), (576, 142080), (592, 138240), (640, 127872), (666, 122880), (720, 113664), (740, 110592), (768, 106560), (864, 94720), (888, 92160), (960, 85248), (999, 81920), (1024, 79920), (1080, 75776), (1110, 73728), (1152, 71040), (1184, 69120), (1280, 63936), (1332, 61440), (1440, 56832), (1480, 55296), (1536, 53280), (1665, 49152), (1728, 47360), (1776, 46080), (1920, 42624), (1998, 40960), (2048, 39960), (2160, 37888), (2220, 36864), (2304, 35520), (2368, 34560), (2560, 31968), (2664, 30720), (2880, 28416), (2960, 27648), (3072, 26640), (3330, 24576), (3456, 23680), (3552, 23040), (3840, 21312), (3996, 20480), (4096, 19980), (4320, 18944), (4440, 18432), (4608, 17760), (4736, 17280), (4995, 16384), (5120, 15984), (5328, 15360), (5760, 14208), (5920, 13824), (6144, 13320), (6660, 12288), (6912, 11840), (7104, 11520), (7680, 10656), (7992, 10240), (8192, 9990), (8640, 9472), (8880, 9216)]