66817880

素因数分解:

$2^3\times 5^1\times {\mathrm{1670447}}^1$

素因数の和:1670458

約数の個数: 16

約数和(自身を含む): 150340320

約数和(自身を除く): 83522440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1670447, 3340894, 6681788, 8352235, 13363576, 16704470, 33408940, 66817880]

約数ペア:

[(1, 66817880), (2, 33408940), (4, 16704470), (5, 13363576), (8, 8352235), (10, 6681788), (20, 3340894), (40, 1670447)]