78518920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115469}}^1$

素因数の和:115497

約数の個数: 32

約数和(自身を含む): 187061400

約数和(自身を除く): 108542480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115469, 230938, 461876, 577345, 923752, 1154690, 1962973, 2309380, 3925946, 4618760, 7851892, 9814865, 15703784, 19629730, 39259460, 78518920]

約数ペア:

[(1, 78518920), (2, 39259460), (4, 19629730), (5, 15703784), (8, 9814865), (10, 7851892), (17, 4618760), (20, 3925946), (34, 2309380), (40, 1962973), (68, 1154690), (85, 923752), (136, 577345), (170, 461876), (340, 230938), (680, 115469)]