40905640

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2897}}^1$

素因数の和:3261

約数の個数: 32

約数和(自身を含む): 92330280

約数和(自身を除く): 51424640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 2897, 3530, 5794, 7060, 11588, 14120, 14485, 23176, 28970, 57940, 115880, 1022641, 2045282, 4090564, 5113205, 8181128, 10226410, 20452820, 40905640]

約数ペア:

[(1, 40905640), (2, 20452820), (4, 10226410), (5, 8181128), (8, 5113205), (10, 4090564), (20, 2045282), (40, 1022641), (353, 115880), (706, 57940), (1412, 28970), (1765, 23176), (2824, 14485), (2897, 14120), (3530, 11588), (5794, 7060)]