77984560

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7013}}^1$

素因数の和:7165

約数の個数: 40

約数和(自身を含む): 182644560

約数和(自身を除く): 104660000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 7013, 11120, 14026, 28052, 35065, 56104, 70130, 112208, 140260, 280520, 561040, 974807, 1949614, 3899228, 4874035, 7798456, 9748070, 15596912, 19496140, 38992280, 77984560]

約数ペア:

[(1, 77984560), (2, 38992280), (4, 19496140), (5, 15596912), (8, 9748070), (10, 7798456), (16, 4874035), (20, 3899228), (40, 1949614), (80, 974807), (139, 561040), (278, 280520), (556, 140260), (695, 112208), (1112, 70130), (1390, 56104), (2224, 35065), (2780, 28052), (5560, 14026), (7013, 11120)]