20664696

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 35581704

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 107, 156, 214, 312, 321, 428, 619, 642, 856, 1238, 1284, 1391, 1857, 2476, 2568, 2782, 3714, 4173, 4952, 5564, 7428, 8047, 8346, 11128, 14856, 16094, 16692, 24141, 32188, 33384, 48282, 64376, 66233, 96564, 132466, 193128, 198699, 264932, 397398, 529864, 794796, 861029, 1589592, 1722058, 2583087, 3444116, 5166174, 6888232, 10332348, 20664696]

約数ペア:

[(1, 20664696), (2, 10332348), (3, 6888232), (4, 5166174), (6, 3444116), (8, 2583087), (12, 1722058), (13, 1589592), (24, 861029), (26, 794796), (39, 529864), (52, 397398), (78, 264932), (104, 198699), (107, 193128), (156, 132466), (214, 96564), (312, 66233), (321, 64376), (428, 48282), (619, 33384), (642, 32188), (856, 24141), (1238, 16692), (1284, 16094), (1391, 14856), (1857, 11128), (2476, 8346), (2568, 8047), (2782, 7428), (3714, 5564), (4173, 4952)]