81488956

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 165155760

約数和(自身を除く): 83666804

約数列:

[1, 2, 4, 17, 29, 31, 34, 43, 58, 62, 68, 86, 116, 124, 172, 493, 527, 731, 899, 961, 986, 1054, 1247, 1333, 1462, 1798, 1922, 1972, 2108, 2494, 2666, 2924, 3596, 3844, 4988, 5332, 15283, 16337, 21199, 22661, 27869, 30566, 32674, 38657, 41323, 42398, 45322, 55738, 61132, 65348, 77314, 82646, 84796, 90644, 111476, 154628, 165292, 473773, 657169, 702491, 947546, 1198367, 1314338, 1404982, 1895092, 2396734, 2628676, 2809964, 4793468, 20372239, 40744478, 81488956]

約数ペア:

[(1, 81488956), (2, 40744478), (4, 20372239), (17, 4793468), (29, 2809964), (31, 2628676), (34, 2396734), (43, 1895092), (58, 1404982), (62, 1314338), (68, 1198367), (86, 947546), (116, 702491), (124, 657169), (172, 473773), (493, 165292), (527, 154628), (731, 111476), (899, 90644), (961, 84796), (986, 82646), (1054, 77314), (1247, 65348), (1333, 61132), (1462, 55738), (1798, 45322), (1922, 42398), (1972, 41323), (2108, 38657), (2494, 32674), (2666, 30566), (2924, 27869), (3596, 22661), (3844, 21199), (4988, 16337), (5332, 15283)]