137908280

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8863}}^1$

素因数の和:9263

約数の個数: 32

約数和(自身を含む): 311126400

約数和(自身を除く): 173218120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 8863, 15560, 17726, 35452, 44315, 70904, 88630, 177260, 354520, 3447707, 6895414, 13790828, 17238535, 27581656, 34477070, 68954140, 137908280]

約数ペア:

[(1, 137908280), (2, 68954140), (4, 34477070), (5, 27581656), (8, 17238535), (10, 13790828), (20, 6895414), (40, 3447707), (389, 354520), (778, 177260), (1556, 88630), (1945, 70904), (3112, 44315), (3890, 35452), (7780, 17726), (8863, 15560)]