20468160

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:152

約数の個数: 224

約数和(自身を含む): 76078080

約数和(自身を除く): 55609920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 64, 69, 72, 80, 90, 92, 96, 103, 108, 115, 120, 135, 138, 144, 160, 180, 184, 192, 206, 207, 216, 230, 240, 270, 276, 288, 309, 320, 345, 360, 368, 412, 414, 432, 460, 480, 515, 540, 552, 576, 618, 621, 690, 720, 736, 824, 828, 864, 920, 927, 960, 1030, 1035, 1080, 1104, 1236, 1242, 1380, 1440, 1472, 1545, 1648, 1656, 1728, 1840, 1854, 2060, 2070, 2160, 2208, 2369, 2472, 2484, 2760, 2781, 2880, 3090, 3105, 3296, 3312, 3680, 3708, 4120, 4140, 4320, 4416, 4635, 4738, 4944, 4968, 5520, 5562, 6180, 6210, 6592, 6624, 7107, 7360, 7416, 8240, 8280, 8640, 9270, 9476, 9888, 9936, 11040, 11124, 11845, 12360, 12420, 13248, 13905, 14214, 14832, 16480, 16560, 18540, 18952, 19776, 19872, 21321, 22080, 22248, 23690, 24720, 24840, 27810, 28428, 29664, 32960, 33120, 35535, 37080, 37904, 39744, 42642, 44496, 47380, 49440, 49680, 55620, 56856, 59328, 63963, 66240, 71070, 74160, 75808, 85284, 88992, 94760, 98880, 99360, 106605, 111240, 113712, 127926, 142140, 148320, 151616, 170568, 177984, 189520, 198720, 213210, 222480, 227424, 255852, 284280, 296640, 319815, 341136, 379040, 426420, 444960, 454848, 511704, 568560, 639630, 682272, 758080, 852840, 889920, 1023408, 1137120, 1279260, 1364544, 1705680, 2046816, 2274240, 2558520, 3411360, 4093632, 5117040, 6822720, 10234080, 20468160]

約数ペア:

[(1, 20468160), (2, 10234080), (3, 6822720), (4, 5117040), (5, 4093632), (6, 3411360), (8, 2558520), (9, 2274240), (10, 2046816), (12, 1705680), (15, 1364544), (16, 1279260), (18, 1137120), (20, 1023408), (23, 889920), (24, 852840), (27, 758080), (30, 682272), (32, 639630), (36, 568560), (40, 511704), (45, 454848), (46, 444960), (48, 426420), (54, 379040), (60, 341136), (64, 319815), (69, 296640), (72, 284280), (80, 255852), (90, 227424), (92, 222480), (96, 213210), (103, 198720), (108, 189520), (115, 177984), (120, 170568), (135, 151616), (138, 148320), (144, 142140), (160, 127926), (180, 113712), (184, 111240), (192, 106605), (206, 99360), (207, 98880), (216, 94760), (230, 88992), (240, 85284), (270, 75808), (276, 74160), (288, 71070), (309, 66240), (320, 63963), (345, 59328), (360, 56856), (368, 55620), (412, 49680), (414, 49440), (432, 47380), (460, 44496), (480, 42642), (515, 39744), (540, 37904), (552, 37080), (576, 35535), (618, 33120), (621, 32960), (690, 29664), (720, 28428), (736, 27810), (824, 24840), (828, 24720), (864, 23690), (920, 22248), (927, 22080), (960, 21321), (1030, 19872), (1035, 19776), (1080, 18952), (1104, 18540), (1236, 16560), (1242, 16480), (1380, 14832), (1440, 14214), (1472, 13905), (1545, 13248), (1648, 12420), (1656, 12360), (1728, 11845), (1840, 11124), (1854, 11040), (2060, 9936), (2070, 9888), (2160, 9476), (2208, 9270), (2369, 8640), (2472, 8280), (2484, 8240), (2760, 7416), (2781, 7360), (2880, 7107), (3090, 6624), (3105, 6592), (3296, 6210), (3312, 6180), (3680, 5562), (3708, 5520), (4120, 4968), (4140, 4944), (4320, 4738), (4416, 4635)]