72942860

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{7489}}^1$

素因数の和:7985

約数の個数: 24

約数和(自身を含む): 153515040

約数和(自身を除く): 80572180

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 7489, 9740, 14978, 29956, 37445, 74890, 149780, 3647143, 7294286, 14588572, 18235715, 36471430, 72942860]

約数ペア:

[(1, 72942860), (2, 36471430), (4, 18235715), (5, 14588572), (10, 7294286), (20, 3647143), (487, 149780), (974, 74890), (1948, 37445), (2435, 29956), (4870, 14978), (7489, 9740)]