788421985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 1101703680

約数和(自身を除く): 313281695

約数列:

[1, 5, 13, 29, 43, 65, 71, 137, 145, 215, 355, 377, 559, 685, 923, 1247, 1781, 1885, 2059, 2795, 3053, 3973, 4615, 5891, 6235, 8905, 9727, 10295, 15265, 16211, 19865, 26767, 29455, 39689, 48635, 51649, 76583, 81055, 88537, 126451, 133835, 170839, 198445, 258245, 282083, 382915, 418261, 442685, 632255, 854195, 1150981, 1410415, 2091305, 2220907, 3667079, 5437393, 5754905, 11104535, 12129569, 18335395, 27186965, 60647845, 157684397, 788421985]

約数ペア:

[(1, 788421985), (5, 157684397), (13, 60647845), (29, 27186965), (43, 18335395), (65, 12129569), (71, 11104535), (137, 5754905), (145, 5437393), (215, 3667079), (355, 2220907), (377, 2091305), (559, 1410415), (685, 1150981), (923, 854195), (1247, 632255), (1781, 442685), (1885, 418261), (2059, 382915), (2795, 282083), (3053, 258245), (3973, 198445), (4615, 170839), (5891, 133835), (6235, 126451), (8905, 88537), (9727, 81055), (10295, 76583), (15265, 51649), (16211, 48635), (19865, 39689), (26767, 29455)]