7272940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21391}}^1$

素因数の和:21417

約数の個数: 24

約数和(自身を含む): 16172352

約数和(自身を除く): 8899412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21391, 42782, 85564, 106955, 213910, 363647, 427820, 727294, 1454588, 1818235, 3636470, 7272940]

約数ペア:

[(1, 7272940), (2, 3636470), (4, 1818235), (5, 1454588), (10, 727294), (17, 427820), (20, 363647), (34, 213910), (68, 106955), (85, 85564), (170, 42782), (340, 21391)]