217424640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1381}}^1$

素因数の和:1446

約数の個数: 144

約数和(自身を含む): 711851616

約数和(自身を除く): 494426976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 256, 320, 328, 384, 410, 480, 492, 615, 640, 656, 768, 820, 960, 984, 1230, 1280, 1312, 1381, 1640, 1920, 1968, 2460, 2624, 2762, 3280, 3840, 3936, 4143, 4920, 5248, 5524, 6560, 6905, 7872, 8286, 9840, 10496, 11048, 13120, 13810, 15744, 16572, 19680, 20715, 22096, 26240, 27620, 31488, 33144, 39360, 41430, 44192, 52480, 55240, 56621, 66288, 78720, 82860, 88384, 110480, 113242, 132576, 157440, 165720, 169863, 176768, 220960, 226484, 265152, 283105, 331440, 339726, 353536, 441920, 452968, 530304, 566210, 662880, 679452, 849315, 883840, 905936, 1060608, 1132420, 1325760, 1358904, 1698630, 1767680, 1811872, 2264840, 2651520, 2717808, 3397260, 3623744, 4529680, 5303040, 5435616, 6794520, 7247488, 9059360, 10871232, 13589040, 14494976, 18118720, 21742464, 27178080, 36237440, 43484928, 54356160, 72474880, 108712320, 217424640]

約数ペア:

[(1, 217424640), (2, 108712320), (3, 72474880), (4, 54356160), (5, 43484928), (6, 36237440), (8, 27178080), (10, 21742464), (12, 18118720), (15, 14494976), (16, 13589040), (20, 10871232), (24, 9059360), (30, 7247488), (32, 6794520), (40, 5435616), (41, 5303040), (48, 4529680), (60, 3623744), (64, 3397260), (80, 2717808), (82, 2651520), (96, 2264840), (120, 1811872), (123, 1767680), (128, 1698630), (160, 1358904), (164, 1325760), (192, 1132420), (205, 1060608), (240, 905936), (246, 883840), (256, 849315), (320, 679452), (328, 662880), (384, 566210), (410, 530304), (480, 452968), (492, 441920), (615, 353536), (640, 339726), (656, 331440), (768, 283105), (820, 265152), (960, 226484), (984, 220960), (1230, 176768), (1280, 169863), (1312, 165720), (1381, 157440), (1640, 132576), (1920, 113242), (1968, 110480), (2460, 88384), (2624, 82860), (2762, 78720), (3280, 66288), (3840, 56621), (3936, 55240), (4143, 52480), (4920, 44192), (5248, 41430), (5524, 39360), (6560, 33144), (6905, 31488), (7872, 27620), (8286, 26240), (9840, 22096), (10496, 20715), (11048, 19680), (13120, 16572), (13810, 15744)]