71122180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 152527536

約数和(自身を除く): 81405356

約数列:

[1, 2, 4, 5, 10, 20, 101, 137, 202, 257, 274, 404, 505, 514, 548, 685, 1010, 1028, 1285, 1370, 2020, 2570, 2740, 5140, 13837, 25957, 27674, 35209, 51914, 55348, 69185, 70418, 103828, 129785, 138370, 140836, 176045, 259570, 276740, 352090, 519140, 704180, 3556109, 7112218, 14224436, 17780545, 35561090, 71122180]

約数ペア:

[(1, 71122180), (2, 35561090), (4, 17780545), (5, 14224436), (10, 7112218), (20, 3556109), (101, 704180), (137, 519140), (202, 352090), (257, 276740), (274, 259570), (404, 176045), (505, 140836), (514, 138370), (548, 129785), (685, 103828), (1010, 70418), (1028, 69185), (1285, 55348), (1370, 51914), (2020, 35209), (2570, 27674), (2740, 25957), (5140, 13837)]