138840784

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{122219}}^1$

素因数の和:122298

約数の個数: 20

約数和(自身を含む): 272795040

約数和(自身を除く): 133954256

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 122219, 244438, 488876, 977752, 1955504, 8677549, 17355098, 34710196, 69420392, 138840784]

約数ペア:

[(1, 138840784), (2, 69420392), (4, 34710196), (8, 17355098), (16, 8677549), (71, 1955504), (142, 977752), (284, 488876), (568, 244438), (1136, 122219)]