128534860

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{13417}}^1$

素因数の和:13905

約数の個数: 24

約数和(自身を含む): 270506880

約数和(自身を除く): 141972020

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 13417, 26834, 53668, 67085, 134170, 268340, 6426743, 12853486, 25706972, 32133715, 64267430, 128534860]

約数ペア:

[(1, 128534860), (2, 64267430), (4, 32133715), (5, 25706972), (10, 12853486), (20, 6426743), (479, 268340), (958, 134170), (1916, 67085), (2395, 53668), (4790, 26834), (9580, 13417)]