12957880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24919}}^1$

素因数の和:24943

約数の個数: 32

約数和(自身を含む): 31399200

約数和(自身を除く): 18441320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24919, 49838, 99676, 124595, 199352, 249190, 323947, 498380, 647894, 996760, 1295788, 1619735, 2591576, 3239470, 6478940, 12957880]

約数ペア:

[(1, 12957880), (2, 6478940), (4, 3239470), (5, 2591576), (8, 1619735), (10, 1295788), (13, 996760), (20, 647894), (26, 498380), (40, 323947), (52, 249190), (65, 199352), (104, 124595), (130, 99676), (260, 49838), (520, 24919)]