78813890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{192229}}^1$

素因数の和:192277

約数の個数: 16

約数和(自身を含む): 145325880

約数和(自身を除く): 66511990

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 192229, 384458, 961145, 1922290, 7881389, 15762778, 39406945, 78813890]

約数ペア:

[(1, 78813890), (2, 39406945), (5, 15762778), (10, 7881389), (41, 1922290), (82, 961145), (205, 384458), (410, 192229)]