27431420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{191}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 59609088

約数和(自身を除く): 32177668

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 167, 172, 191, 215, 334, 382, 430, 668, 764, 835, 860, 955, 1670, 1910, 3340, 3820, 7181, 8213, 14362, 16426, 28724, 31897, 32852, 35905, 41065, 63794, 71810, 82130, 127588, 143620, 159485, 164260, 318970, 637940, 1371571, 2743142, 5486284, 6857855, 13715710, 27431420]

約数ペア:

[(1, 27431420), (2, 13715710), (4, 6857855), (5, 5486284), (10, 2743142), (20, 1371571), (43, 637940), (86, 318970), (167, 164260), (172, 159485), (191, 143620), (215, 127588), (334, 82130), (382, 71810), (430, 63794), (668, 41065), (764, 35905), (835, 32852), (860, 31897), (955, 28724), (1670, 16426), (1910, 14362), (3340, 8213), (3820, 7181)]