12905180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{33961}}^1$

素因数の和:33989

約数の個数: 24

約数和(自身を含む): 28528080

約数和(自身を除く): 15622900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 33961, 67922, 135844, 169805, 339610, 645259, 679220, 1290518, 2581036, 3226295, 6452590, 12905180]

約数ペア:

[(1, 12905180), (2, 6452590), (4, 3226295), (5, 2581036), (10, 1290518), (19, 679220), (20, 645259), (38, 339610), (76, 169805), (95, 135844), (190, 67922), (380, 33961)]