205405904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:360

約数の個数: 80

約数和(自身を含む): 447828480

約数和(自身を除く): 242422576

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 59, 88, 118, 131, 151, 176, 236, 262, 302, 472, 524, 604, 649, 944, 1048, 1208, 1298, 1441, 1661, 2096, 2416, 2596, 2882, 3322, 5192, 5764, 6644, 7729, 8909, 10384, 11528, 13288, 15458, 17818, 19781, 23056, 26576, 30916, 35636, 39562, 61832, 71272, 79124, 85019, 97999, 123664, 142544, 158248, 170038, 195998, 217591, 316496, 340076, 391996, 435182, 680152, 783992, 870364, 1167079, 1360304, 1567984, 1740728, 2334158, 3481456, 4668316, 9336632, 12837869, 18673264, 25675738, 51351476, 102702952, 205405904]

約数ペア:

[(1, 205405904), (2, 102702952), (4, 51351476), (8, 25675738), (11, 18673264), (16, 12837869), (22, 9336632), (44, 4668316), (59, 3481456), (88, 2334158), (118, 1740728), (131, 1567984), (151, 1360304), (176, 1167079), (236, 870364), (262, 783992), (302, 680152), (472, 435182), (524, 391996), (604, 340076), (649, 316496), (944, 217591), (1048, 195998), (1208, 170038), (1298, 158248), (1441, 142544), (1661, 123664), (2096, 97999), (2416, 85019), (2596, 79124), (2882, 71272), (3322, 61832), (5192, 39562), (5764, 35636), (6644, 30916), (7729, 26576), (8909, 23056), (10384, 19781), (11528, 17818), (13288, 15458)]