12691220

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1303}}^1$

素因数の和:1799

約数の個数: 24

約数和(自身を含む): 26726784

約数和(自身を除く): 14035564

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1303, 1948, 2435, 2606, 4870, 5212, 6515, 9740, 13030, 26060, 634561, 1269122, 2538244, 3172805, 6345610, 12691220]

約数ペア:

[(1, 12691220), (2, 6345610), (4, 3172805), (5, 2538244), (10, 1269122), (20, 634561), (487, 26060), (974, 13030), (1303, 9740), (1948, 6515), (2435, 5212), (2606, 4870)]