78147356

素因数分解:

$2^2\times 7^2\times {\mathrm{398711}}^1$

素因数の和:398729

約数の個数: 18

約数和(自身を含む): 159086088

約数和(自身を除く): 80938732

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 398711, 797422, 1594844, 2790977, 5581954, 11163908, 19536839, 39073678, 78147356]

約数ペア:

[(1, 78147356), (2, 39073678), (4, 19536839), (7, 11163908), (14, 5581954), (28, 2790977), (49, 1594844), (98, 797422), (196, 398711)]