12080205

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2138

約数の個数: 32

約数和(自身を含む): 21985920

約数和(自身を除く): 9905715

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 2081, 5805, 6243, 10405, 18729, 31215, 56187, 89483, 93645, 268449, 280935, 447415, 805347, 1342245, 2416041, 4026735, 12080205]

約数ペア:

[(1, 12080205), (3, 4026735), (5, 2416041), (9, 1342245), (15, 805347), (27, 447415), (43, 280935), (45, 268449), (129, 93645), (135, 89483), (215, 56187), (387, 31215), (645, 18729), (1161, 10405), (1935, 6243), (2081, 5805)]