61666340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43427}}^1$

素因数の和:43507

約数の個数: 24

約数和(自身を含む): 131326272

約数和(自身を除く): 69659932

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 43427, 86854, 173708, 217135, 434270, 868540, 3083317, 6166634, 12333268, 15416585, 30833170, 61666340]

約数ペア:

[(1, 61666340), (2, 30833170), (4, 15416585), (5, 12333268), (10, 6166634), (20, 3083317), (71, 868540), (142, 434270), (284, 217135), (355, 173708), (710, 86854), (1420, 43427)]