679378520

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1\times {\mathrm{499}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 1551420000

約数和(自身を除く): 872041480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 337, 404, 499, 505, 674, 808, 998, 1010, 1348, 1685, 1996, 2020, 2495, 2696, 3370, 3992, 4040, 4990, 6740, 9980, 13480, 19960, 34037, 50399, 68074, 100798, 136148, 168163, 170185, 201596, 251995, 272296, 336326, 340370, 403192, 503990, 672652, 680740, 840815, 1007980, 1345304, 1361480, 1681630, 2015960, 3363260, 6726520, 16984463, 33968926, 67937852, 84922315, 135875704, 169844630, 339689260, 679378520]

約数ペア:

[(1, 679378520), (2, 339689260), (4, 169844630), (5, 135875704), (8, 84922315), (10, 67937852), (20, 33968926), (40, 16984463), (101, 6726520), (202, 3363260), (337, 2015960), (404, 1681630), (499, 1361480), (505, 1345304), (674, 1007980), (808, 840815), (998, 680740), (1010, 672652), (1348, 503990), (1685, 403192), (1996, 340370), (2020, 336326), (2495, 272296), (2696, 251995), (3370, 201596), (3992, 170185), (4040, 168163), (4990, 136148), (6740, 100798), (9980, 68074), (13480, 50399), (19960, 34037)]