256811688

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5479}}^1$

素因数の和:5532

約数の個数: 128

約数和(自身を含む): 841728000

約数和(自身を除く): 584916312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 31, 36, 42, 54, 56, 62, 63, 72, 84, 93, 108, 124, 126, 168, 186, 189, 216, 217, 248, 252, 279, 372, 378, 434, 504, 558, 651, 744, 756, 837, 868, 1116, 1302, 1512, 1674, 1736, 1953, 2232, 2604, 3348, 3906, 5208, 5479, 5859, 6696, 7812, 10958, 11718, 15624, 16437, 21916, 23436, 32874, 38353, 43832, 46872, 49311, 65748, 76706, 98622, 115059, 131496, 147933, 153412, 169849, 197244, 230118, 295866, 306824, 339698, 345177, 394488, 460236, 509547, 591732, 679396, 690354, 920472, 1019094, 1035531, 1183464, 1188943, 1358792, 1380708, 1528641, 2038188, 2071062, 2377886, 2761416, 3057282, 3566829, 4076376, 4142124, 4585923, 4755772, 6114564, 7133658, 8284248, 9171846, 9511544, 10700487, 12229128, 14267316, 18343692, 21400974, 28534632, 32101461, 36687384, 42801948, 64202922, 85603896, 128405844, 256811688]

約数ペア:

[(1, 256811688), (2, 128405844), (3, 85603896), (4, 64202922), (6, 42801948), (7, 36687384), (8, 32101461), (9, 28534632), (12, 21400974), (14, 18343692), (18, 14267316), (21, 12229128), (24, 10700487), (27, 9511544), (28, 9171846), (31, 8284248), (36, 7133658), (42, 6114564), (54, 4755772), (56, 4585923), (62, 4142124), (63, 4076376), (72, 3566829), (84, 3057282), (93, 2761416), (108, 2377886), (124, 2071062), (126, 2038188), (168, 1528641), (186, 1380708), (189, 1358792), (216, 1188943), (217, 1183464), (248, 1035531), (252, 1019094), (279, 920472), (372, 690354), (378, 679396), (434, 591732), (504, 509547), (558, 460236), (651, 394488), (744, 345177), (756, 339698), (837, 306824), (868, 295866), (1116, 230118), (1302, 197244), (1512, 169849), (1674, 153412), (1736, 147933), (1953, 131496), (2232, 115059), (2604, 98622), (3348, 76706), (3906, 65748), (5208, 49311), (5479, 46872), (5859, 43832), (6696, 38353), (7812, 32874), (10958, 23436), (11718, 21916), (15624, 16437)]