68915644

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{17707}}^1$

素因数の和:17857

約数の個数: 24

約数和(自身を含む): 138830720

約数和(自身を除く): 69915076

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 17707, 35414, 70828, 123949, 247898, 495796, 2461273, 4922546, 9845092, 17228911, 34457822, 68915644]

約数ペア:

[(1, 68915644), (2, 34457822), (4, 17228911), (7, 9845092), (14, 4922546), (28, 2461273), (139, 495796), (278, 247898), (556, 123949), (973, 70828), (1946, 35414), (3892, 17707)]