1918780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{487}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 4058208

約数和(自身を除く): 2139428

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 487, 788, 974, 985, 1948, 1970, 2435, 3940, 4870, 9740, 95939, 191878, 383756, 479695, 959390, 1918780]

約数ペア:

[(1, 1918780), (2, 959390), (4, 479695), (5, 383756), (10, 191878), (20, 95939), (197, 9740), (394, 4870), (487, 3940), (788, 2435), (974, 1970), (985, 1948)]