12891190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1871}}^1$

素因数の和:1944

約数の個数: 32

約数和(自身を含む): 25474176

約数和(自身を除く): 12582986

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 1871, 3445, 3742, 6890, 9355, 18710, 24323, 48646, 99163, 121615, 198326, 243230, 495815, 991630, 1289119, 2578238, 6445595, 12891190]

約数ペア:

[(1, 12891190), (2, 6445595), (5, 2578238), (10, 1289119), (13, 991630), (26, 495815), (53, 243230), (65, 198326), (106, 121615), (130, 99163), (265, 48646), (530, 24323), (689, 18710), (1378, 9355), (1871, 6890), (3445, 3742)]