20492212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20150348

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 107, 116, 127, 214, 254, 377, 428, 508, 754, 1391, 1508, 1651, 2782, 3103, 3302, 3683, 5564, 6206, 6604, 7366, 12412, 13589, 14732, 27178, 40339, 47879, 54356, 80678, 95758, 161356, 176657, 191516, 353314, 394081, 706628, 788162, 1576324, 5123053, 10246106, 20492212]

約数ペア:

[(1, 20492212), (2, 10246106), (4, 5123053), (13, 1576324), (26, 788162), (29, 706628), (52, 394081), (58, 353314), (107, 191516), (116, 176657), (127, 161356), (214, 95758), (254, 80678), (377, 54356), (428, 47879), (508, 40339), (754, 27178), (1391, 14732), (1508, 13589), (1651, 12412), (2782, 7366), (3103, 6604), (3302, 6206), (3683, 5564)]