266488340

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{34253}}^1$

素因数の和:34651

約数の個数: 24

約数和(自身を含む): 561080520

約数和(自身を除く): 294592180

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 34253, 68506, 137012, 171265, 342530, 685060, 13324417, 26648834, 53297668, 66622085, 133244170, 266488340]

約数ペア:

[(1, 266488340), (2, 133244170), (4, 66622085), (5, 53297668), (10, 26648834), (20, 13324417), (389, 685060), (778, 342530), (1556, 171265), (1945, 137012), (3890, 68506), (7780, 34253)]