19715140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42859}}^1$

素因数の和:42891

約数の個数: 24

約数和(自身を含む): 43202880

約数和(自身を除く): 23487740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42859, 85718, 171436, 214295, 428590, 857180, 985757, 1971514, 3943028, 4928785, 9857570, 19715140]

約数ペア:

[(1, 19715140), (2, 9857570), (4, 4928785), (5, 3943028), (10, 1971514), (20, 985757), (23, 857180), (46, 428590), (92, 214295), (115, 171436), (230, 85718), (460, 42859)]