19512940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 25393460

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 1979, 2465, 3958, 4930, 7916, 9860, 9895, 19790, 33643, 39580, 57391, 67286, 114782, 134572, 168215, 229564, 286955, 336430, 573910, 672860, 975647, 1147820, 1951294, 3902588, 4878235, 9756470, 19512940]

約数ペア:

[(1, 19512940), (2, 9756470), (4, 4878235), (5, 3902588), (10, 1951294), (17, 1147820), (20, 975647), (29, 672860), (34, 573910), (58, 336430), (68, 286955), (85, 229564), (116, 168215), (145, 134572), (170, 114782), (290, 67286), (340, 57391), (493, 39580), (580, 33643), (986, 19790), (1972, 9895), (1979, 9860), (2465, 7916), (3958, 4930)]