13278940

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{4397}}^1$

素因数の和:4557

約数の個数: 24

約数和(自身を含む): 28076832

約数和(自身を除く): 14797892

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 4397, 8794, 17588, 21985, 43970, 87940, 663947, 1327894, 2655788, 3319735, 6639470, 13278940]

約数ペア:

[(1, 13278940), (2, 6639470), (4, 3319735), (5, 2655788), (10, 1327894), (20, 663947), (151, 87940), (302, 43970), (604, 21985), (755, 17588), (1510, 8794), (3020, 4397)]