320860928

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 659312640

約数和(自身を除く): 338451712

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 127, 128, 139, 142, 254, 256, 278, 284, 508, 556, 568, 1016, 1112, 1136, 2032, 2224, 2272, 4064, 4448, 4544, 8128, 8896, 9017, 9088, 9869, 16256, 17653, 17792, 18034, 18176, 19738, 32512, 35306, 35584, 36068, 39476, 70612, 72136, 78952, 141224, 144272, 157904, 282448, 288544, 315808, 564896, 577088, 631616, 1129792, 1154176, 1253363, 1263232, 2259584, 2308352, 2506726, 2526464, 4519168, 5013452, 10026904, 20053808, 40107616, 80215232, 160430464, 320860928]

約数ペア:

[(1, 320860928), (2, 160430464), (4, 80215232), (8, 40107616), (16, 20053808), (32, 10026904), (64, 5013452), (71, 4519168), (127, 2526464), (128, 2506726), (139, 2308352), (142, 2259584), (254, 1263232), (256, 1253363), (278, 1154176), (284, 1129792), (508, 631616), (556, 577088), (568, 564896), (1016, 315808), (1112, 288544), (1136, 282448), (2032, 157904), (2224, 144272), (2272, 141224), (4064, 78952), (4448, 72136), (4544, 70612), (8128, 39476), (8896, 36068), (9017, 35584), (9088, 35306), (9869, 32512), (16256, 19738), (17653, 18176), (17792, 18034)]