1791207880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8191}}^1$

素因数の和:8291

約数の個数: 128

約数和(自身を含む): 5096079360

約数和(自身を除く): 3304871480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 88, 110, 140, 142, 154, 220, 280, 284, 308, 355, 385, 440, 497, 568, 616, 710, 770, 781, 994, 1420, 1540, 1562, 1988, 2485, 2840, 3080, 3124, 3905, 3976, 4970, 5467, 6248, 7810, 8191, 9940, 10934, 15620, 16382, 19880, 21868, 27335, 31240, 32764, 40955, 43736, 54670, 57337, 65528, 81910, 90101, 109340, 114674, 163820, 180202, 218680, 229348, 286685, 327640, 360404, 450505, 458696, 573370, 581561, 630707, 720808, 901010, 1146740, 1163122, 1261414, 1802020, 2293480, 2326244, 2522828, 2907805, 3153535, 3604040, 4070927, 4652488, 5045656, 5815610, 6307070, 6397171, 8141854, 11631220, 12614140, 12794342, 16283708, 20354635, 23262440, 25228280, 25588684, 31985855, 32567416, 40709270, 44780197, 51177368, 63971710, 81418540, 89560394, 127943420, 162837080, 179120788, 223900985, 255886840, 358241576, 447801970, 895603940, 1791207880]

約数ペア:

[(1, 1791207880), (2, 895603940), (4, 447801970), (5, 358241576), (7, 255886840), (8, 223900985), (10, 179120788), (11, 162837080), (14, 127943420), (20, 89560394), (22, 81418540), (28, 63971710), (35, 51177368), (40, 44780197), (44, 40709270), (55, 32567416), (56, 31985855), (70, 25588684), (71, 25228280), (77, 23262440), (88, 20354635), (110, 16283708), (140, 12794342), (142, 12614140), (154, 11631220), (220, 8141854), (280, 6397171), (284, 6307070), (308, 5815610), (355, 5045656), (385, 4652488), (440, 4070927), (497, 3604040), (568, 3153535), (616, 2907805), (710, 2522828), (770, 2326244), (781, 2293480), (994, 1802020), (1420, 1261414), (1540, 1163122), (1562, 1146740), (1988, 901010), (2485, 720808), (2840, 630707), (3080, 581561), (3124, 573370), (3905, 458696), (3976, 450505), (4970, 360404), (5467, 327640), (6248, 286685), (7810, 229348), (8191, 218680), (9940, 180202), (10934, 163820), (15620, 114674), (16382, 109340), (19880, 90101), (21868, 81910), (27335, 65528), (31240, 57337), (32764, 54670), (40955, 43736)]