68722640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{122719}}^1$

素因数の和:122739

約数の個数: 40

約数和(自身を含む): 182607360

約数和(自身を除く): 113884720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 122719, 245438, 490876, 613595, 859033, 981752, 1227190, 1718066, 1963504, 2454380, 3436132, 4295165, 4908760, 6872264, 8590330, 9817520, 13744528, 17180660, 34361320, 68722640]

約数ペア:

[(1, 68722640), (2, 34361320), (4, 17180660), (5, 13744528), (7, 9817520), (8, 8590330), (10, 6872264), (14, 4908760), (16, 4295165), (20, 3436132), (28, 2454380), (35, 1963504), (40, 1718066), (56, 1227190), (70, 981752), (80, 859033), (112, 613595), (140, 490876), (280, 245438), (560, 122719)]