251331984

素因数分解:

$2^4\times 3^5\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:659

約数の個数: 120

約数和(自身を含む): 736619520

約数和(自身を除く): 485287536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 127, 144, 162, 216, 243, 254, 324, 381, 432, 486, 508, 509, 648, 762, 972, 1016, 1018, 1143, 1296, 1524, 1527, 1944, 2032, 2036, 2286, 3048, 3054, 3429, 3888, 4072, 4572, 4581, 6096, 6108, 6858, 8144, 9144, 9162, 10287, 12216, 13716, 13743, 18288, 18324, 20574, 24432, 27432, 27486, 30861, 36648, 41148, 41229, 54864, 54972, 61722, 64643, 73296, 82296, 82458, 109944, 123444, 123687, 129286, 164592, 164916, 193929, 219888, 246888, 247374, 258572, 329832, 387858, 493776, 494748, 517144, 581787, 659664, 775716, 989496, 1034288, 1163574, 1551432, 1745361, 1978992, 2327148, 3102864, 3490722, 4654296, 5236083, 6981444, 9308592, 10472166, 13962888, 15708249, 20944332, 27925776, 31416498, 41888664, 62832996, 83777328, 125665992, 251331984]

約数ペア:

[(1, 251331984), (2, 125665992), (3, 83777328), (4, 62832996), (6, 41888664), (8, 31416498), (9, 27925776), (12, 20944332), (16, 15708249), (18, 13962888), (24, 10472166), (27, 9308592), (36, 6981444), (48, 5236083), (54, 4654296), (72, 3490722), (81, 3102864), (108, 2327148), (127, 1978992), (144, 1745361), (162, 1551432), (216, 1163574), (243, 1034288), (254, 989496), (324, 775716), (381, 659664), (432, 581787), (486, 517144), (508, 494748), (509, 493776), (648, 387858), (762, 329832), (972, 258572), (1016, 247374), (1018, 246888), (1143, 219888), (1296, 193929), (1524, 164916), (1527, 164592), (1944, 129286), (2032, 123687), (2036, 123444), (2286, 109944), (3048, 82458), (3054, 82296), (3429, 73296), (3888, 64643), (4072, 61722), (4572, 54972), (4581, 54864), (6096, 41229), (6108, 41148), (6858, 36648), (8144, 30861), (9144, 27486), (9162, 27432), (10287, 24432), (12216, 20574), (13716, 18324), (13743, 18288)]