68789080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17027}}^1$

素因数の和:17139

約数の個数: 32

約数和(自身を含む): 156317040

約数和(自身を除く): 87527960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17027, 34054, 68108, 85135, 136216, 170270, 340540, 681080, 1719727, 3439454, 6878908, 8598635, 13757816, 17197270, 34394540, 68789080]

約数ペア:

[(1, 68789080), (2, 34394540), (4, 17197270), (5, 13757816), (8, 8598635), (10, 6878908), (20, 3439454), (40, 1719727), (101, 681080), (202, 340540), (404, 170270), (505, 136216), (808, 85135), (1010, 68108), (2020, 34054), (4040, 17027)]