81718658

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 154828800

約数和(自身を除く): 73110142

約数列:

[1, 2, 7, 14, 19, 38, 41, 59, 82, 118, 127, 133, 254, 266, 287, 413, 574, 779, 826, 889, 1121, 1558, 1778, 2242, 2413, 2419, 4826, 4838, 5207, 5453, 7493, 7847, 10414, 10906, 14986, 15694, 16891, 16933, 33782, 33866, 36449, 45961, 52451, 72898, 91922, 98933, 104902, 142367, 197866, 284734, 307213, 321727, 614426, 643454, 692531, 996569, 1385062, 1993138, 2150491, 4300982, 5837047, 11674094, 40859329, 81718658]

約数ペア:

[(1, 81718658), (2, 40859329), (7, 11674094), (14, 5837047), (19, 4300982), (38, 2150491), (41, 1993138), (59, 1385062), (82, 996569), (118, 692531), (127, 643454), (133, 614426), (254, 321727), (266, 307213), (287, 284734), (413, 197866), (574, 142367), (779, 104902), (826, 98933), (889, 91922), (1121, 72898), (1558, 52451), (1778, 45961), (2242, 36449), (2413, 33866), (2419, 33782), (4826, 16933), (4838, 16891), (5207, 15694), (5453, 14986), (7493, 10906), (7847, 10414)]