64674980

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{4561}}^1$

素因数の和:5279

約数の個数: 24

約数和(自身を含む): 136038840

約数和(自身を除く): 71363860

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 2836, 3545, 4561, 7090, 9122, 14180, 18244, 22805, 45610, 91220, 3233749, 6467498, 12934996, 16168745, 32337490, 64674980]

約数ペア:

[(1, 64674980), (2, 32337490), (4, 16168745), (5, 12934996), (10, 6467498), (20, 3233749), (709, 91220), (1418, 45610), (2836, 22805), (3545, 18244), (4561, 14180), (7090, 9122)]