25721568

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 78414336

約数和(自身を除く): 52692768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 43, 48, 62, 67, 72, 86, 93, 96, 124, 129, 134, 144, 172, 186, 201, 248, 258, 268, 279, 288, 344, 372, 387, 402, 496, 516, 536, 558, 603, 688, 744, 774, 804, 992, 1032, 1072, 1116, 1206, 1333, 1376, 1488, 1548, 1608, 2064, 2077, 2144, 2232, 2412, 2666, 2881, 2976, 3096, 3216, 3999, 4128, 4154, 4464, 4824, 5332, 5762, 6192, 6231, 6432, 7998, 8308, 8643, 8928, 9648, 10664, 11524, 11997, 12384, 12462, 15996, 16616, 17286, 18693, 19296, 21328, 23048, 23994, 24924, 25929, 31992, 33232, 34572, 37386, 42656, 46096, 47988, 49848, 51858, 63984, 66464, 69144, 74772, 89311, 92192, 95976, 99696, 103716, 127968, 138288, 149544, 178622, 191952, 199392, 207432, 267933, 276576, 299088, 357244, 383904, 414864, 535866, 598176, 714488, 803799, 829728, 1071732, 1428976, 1607598, 2143464, 2857952, 3215196, 4286928, 6430392, 8573856, 12860784, 25721568]

約数ペア:

[(1, 25721568), (2, 12860784), (3, 8573856), (4, 6430392), (6, 4286928), (8, 3215196), (9, 2857952), (12, 2143464), (16, 1607598), (18, 1428976), (24, 1071732), (31, 829728), (32, 803799), (36, 714488), (43, 598176), (48, 535866), (62, 414864), (67, 383904), (72, 357244), (86, 299088), (93, 276576), (96, 267933), (124, 207432), (129, 199392), (134, 191952), (144, 178622), (172, 149544), (186, 138288), (201, 127968), (248, 103716), (258, 99696), (268, 95976), (279, 92192), (288, 89311), (344, 74772), (372, 69144), (387, 66464), (402, 63984), (496, 51858), (516, 49848), (536, 47988), (558, 46096), (603, 42656), (688, 37386), (744, 34572), (774, 33232), (804, 31992), (992, 25929), (1032, 24924), (1072, 23994), (1116, 23048), (1206, 21328), (1333, 19296), (1376, 18693), (1488, 17286), (1548, 16616), (1608, 15996), (2064, 12462), (2077, 12384), (2144, 11997), (2232, 11524), (2412, 10664), (2666, 9648), (2881, 8928), (2976, 8643), (3096, 8308), (3216, 7998), (3999, 6432), (4128, 6231), (4154, 6192), (4464, 5762), (4824, 5332)]