138881456

素因数分解:

$2^4\times 7^1\times {\mathrm{1240013}}^1$

素因数の和:1240028

約数の個数: 20

約数和(自身を含む): 307523472

約数和(自身を除く): 168642016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1240013, 2480026, 4960052, 8680091, 9920104, 17360182, 19840208, 34720364, 69440728, 138881456]

約数ペア:

[(1, 138881456), (2, 69440728), (4, 34720364), (7, 19840208), (8, 17360182), (14, 9920104), (16, 8680091), (28, 4960052), (56, 2480026), (112, 1240013)]