71784778

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 127620360

約数和(自身を除く): 55835582

約数列:

[1, 2, 13, 17, 26, 31, 34, 62, 169, 221, 338, 403, 442, 527, 806, 961, 1054, 1922, 2197, 2873, 4394, 5239, 5746, 6851, 10478, 12493, 13702, 16337, 24986, 32674, 37349, 68107, 74698, 89063, 136214, 162409, 178126, 212381, 324818, 424762, 1157819, 2111317, 2315638, 2760953, 4222634, 5521906, 35892389, 71784778]

約数ペア:

[(1, 71784778), (2, 35892389), (13, 5521906), (17, 4222634), (26, 2760953), (31, 2315638), (34, 2111317), (62, 1157819), (169, 424762), (221, 324818), (338, 212381), (403, 178126), (442, 162409), (527, 136214), (806, 89063), (961, 74698), (1054, 68107), (1922, 37349), (2197, 32674), (2873, 24986), (4394, 16337), (5239, 13702), (5746, 12493), (6851, 10478)]