254291840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{881}}^1$

素因数の和:952

約数の個数: 128

約数和(自身を含む): 680127840

約数和(自身を除く): 425836000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 205, 220, 320, 328, 352, 410, 440, 451, 640, 656, 704, 820, 880, 881, 902, 1312, 1408, 1640, 1760, 1762, 1804, 2255, 2624, 3280, 3520, 3524, 3608, 4405, 4510, 5248, 6560, 7040, 7048, 7216, 8810, 9020, 9691, 13120, 14096, 14432, 17620, 18040, 19382, 26240, 28192, 28864, 35240, 36080, 36121, 38764, 48455, 56384, 57728, 70480, 72160, 72242, 77528, 96910, 112768, 140960, 144320, 144484, 155056, 180605, 193820, 281920, 288640, 288968, 310112, 361210, 387640, 397331, 563840, 577936, 620224, 722420, 775280, 794662, 1155872, 1240448, 1444840, 1550560, 1589324, 1986655, 2311744, 2889680, 3101120, 3178648, 3973310, 4623488, 5779360, 6202240, 6357296, 7946620, 11558720, 12714592, 15893240, 23117440, 25429184, 31786480, 50858368, 63572960, 127145920, 254291840]

約数ペア:

[(1, 254291840), (2, 127145920), (4, 63572960), (5, 50858368), (8, 31786480), (10, 25429184), (11, 23117440), (16, 15893240), (20, 12714592), (22, 11558720), (32, 7946620), (40, 6357296), (41, 6202240), (44, 5779360), (55, 4623488), (64, 3973310), (80, 3178648), (82, 3101120), (88, 2889680), (110, 2311744), (128, 1986655), (160, 1589324), (164, 1550560), (176, 1444840), (205, 1240448), (220, 1155872), (320, 794662), (328, 775280), (352, 722420), (410, 620224), (440, 577936), (451, 563840), (640, 397331), (656, 387640), (704, 361210), (820, 310112), (880, 288968), (881, 288640), (902, 281920), (1312, 193820), (1408, 180605), (1640, 155056), (1760, 144484), (1762, 144320), (1804, 140960), (2255, 112768), (2624, 96910), (3280, 77528), (3520, 72242), (3524, 72160), (3608, 70480), (4405, 57728), (4510, 56384), (5248, 48455), (6560, 38764), (7040, 36121), (7048, 36080), (7216, 35240), (8810, 28864), (9020, 28192), (9691, 26240), (13120, 19382), (14096, 18040), (14432, 17620)]