13545640

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{853}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 30590280

約数和(自身を除く): 17044640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 853, 1588, 1706, 1985, 3176, 3412, 3970, 4265, 6824, 7940, 8530, 15880, 17060, 34120, 338641, 677282, 1354564, 1693205, 2709128, 3386410, 6772820, 13545640]

約数ペア:

[(1, 13545640), (2, 6772820), (4, 3386410), (5, 2709128), (8, 1693205), (10, 1354564), (20, 677282), (40, 338641), (397, 34120), (794, 17060), (853, 15880), (1588, 8530), (1706, 7940), (1985, 6824), (3176, 4265), (3412, 3970)]