79681456

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{19841}}^1$

素因数の和:20100

約数の個数: 20

約数和(自身を含む): 155005704

約数和(自身を除く): 75324248

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 19841, 39682, 79364, 158728, 317456, 4980091, 9960182, 19920364, 39840728, 79681456]

約数ペア:

[(1, 79681456), (2, 39840728), (4, 19920364), (8, 9960182), (16, 4980091), (251, 317456), (502, 158728), (1004, 79364), (2008, 39682), (4016, 19841)]