20013163856

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1304299}}^1$

素因数の和:1304451

約数の個数: 40

約数和(自身を含む): 44638363200

約数和(自身を除く): 24625199344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1918, 2192, 3836, 7672, 15344, 1304299, 2608598, 5217196, 9130093, 10434392, 18260186, 20868784, 36520372, 73040744, 146081488, 178688963, 357377926, 714755852, 1250822741, 1429511704, 2501645482, 2859023408, 5003290964, 10006581928, 20013163856]

約数ペア:

[(1, 20013163856), (2, 10006581928), (4, 5003290964), (7, 2859023408), (8, 2501645482), (14, 1429511704), (16, 1250822741), (28, 714755852), (56, 357377926), (112, 178688963), (137, 146081488), (274, 73040744), (548, 36520372), (959, 20868784), (1096, 18260186), (1918, 10434392), (2192, 9130093), (3836, 5217196), (7672, 2608598), (15344, 1304299)]