16689640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 41549760

約数和(自身を除く): 24860120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 415, 440, 457, 664, 830, 913, 914, 1660, 1826, 1828, 2285, 3320, 3652, 3656, 4565, 4570, 5027, 7304, 9130, 9140, 10054, 18260, 18280, 20108, 25135, 36520, 37931, 40216, 50270, 75862, 100540, 151724, 189655, 201080, 303448, 379310, 417241, 758620, 834482, 1517240, 1668964, 2086205, 3337928, 4172410, 8344820, 16689640]

約数ペア:

[(1, 16689640), (2, 8344820), (4, 4172410), (5, 3337928), (8, 2086205), (10, 1668964), (11, 1517240), (20, 834482), (22, 758620), (40, 417241), (44, 379310), (55, 303448), (83, 201080), (88, 189655), (110, 151724), (166, 100540), (220, 75862), (332, 50270), (415, 40216), (440, 37931), (457, 36520), (664, 25135), (830, 20108), (913, 18280), (914, 18260), (1660, 10054), (1826, 9140), (1828, 9130), (2285, 7304), (3320, 5027), (3652, 4570), (3656, 4565)]