139740356

素因数分解:

$2^2\times 7^2\times {\mathrm{712961}}^1$

素因数の和:712979

約数の個数: 18

約数和(自身を含む): 284471838

約数和(自身を除く): 144731482

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 712961, 1425922, 2851844, 4990727, 9981454, 19962908, 34935089, 69870178, 139740356]

約数ペア:

[(1, 139740356), (2, 69870178), (4, 34935089), (7, 19962908), (14, 9981454), (28, 4990727), (49, 2851844), (98, 1425922), (196, 712961)]