77210420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{551503}}^1$

素因数の和:551519

約数の個数: 24

約数和(自身を含む): 185305344

約数和(自身を除く): 108094924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 551503, 1103006, 2206012, 2757515, 3860521, 5515030, 7721042, 11030060, 15442084, 19302605, 38605210, 77210420]

約数ペア:

[(1, 77210420), (2, 38605210), (4, 19302605), (5, 15442084), (7, 11030060), (10, 7721042), (14, 5515030), (20, 3860521), (28, 2757515), (35, 2206012), (70, 1103006), (140, 551503)]