18152780

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4561}}^1$

素因数の和:4769

約数の個数: 24

約数和(自身を含む): 38320800

約数和(自身を除く): 20168020

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4561, 9122, 18244, 22805, 45610, 91220, 907639, 1815278, 3630556, 4538195, 9076390, 18152780]

約数ペア:

[(1, 18152780), (2, 9076390), (4, 4538195), (5, 3630556), (10, 1815278), (20, 907639), (199, 91220), (398, 45610), (796, 22805), (995, 18244), (1990, 9122), (3980, 4561)]