79991680

素因数分解:

$2^7\times 5^1\times {\mathrm{124987}}^1$

素因数の和:125006

約数の個数: 32

約数和(自身を含む): 191231640

約数和(自身を除く): 111239960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 124987, 249974, 499948, 624935, 999896, 1249870, 1999792, 2499740, 3999584, 4999480, 7999168, 9998960, 15998336, 19997920, 39995840, 79991680]

約数ペア:

[(1, 79991680), (2, 39995840), (4, 19997920), (5, 15998336), (8, 9998960), (10, 7999168), (16, 4999480), (20, 3999584), (32, 2499740), (40, 1999792), (64, 1249870), (80, 999896), (128, 624935), (160, 499948), (320, 249974), (640, 124987)]