12927140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 29039472

約数和(自身を除く): 16112332

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 193, 197, 340, 386, 394, 772, 788, 965, 985, 1930, 1970, 3281, 3349, 3860, 3940, 6562, 6698, 13124, 13396, 16405, 16745, 32810, 33490, 38021, 65620, 66980, 76042, 152084, 190105, 380210, 646357, 760420, 1292714, 2585428, 3231785, 6463570, 12927140]

約数ペア:

[(1, 12927140), (2, 6463570), (4, 3231785), (5, 2585428), (10, 1292714), (17, 760420), (20, 646357), (34, 380210), (68, 190105), (85, 152084), (170, 76042), (193, 66980), (197, 65620), (340, 38021), (386, 33490), (394, 32810), (772, 16745), (788, 16405), (965, 13396), (985, 13124), (1930, 6698), (1970, 6562), (3281, 3940), (3349, 3860)]