78991754

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{1907}}^1$

素因数の和:2197

約数の個数: 16

約数和(自身を含む): 120204000

約数和(自身を除く): 41212246

約数列:

[1, 2, 139, 149, 278, 298, 1907, 3814, 20711, 41422, 265073, 284143, 530146, 568286, 39495877, 78991754]

約数ペア:

[(1, 78991754), (2, 39495877), (139, 568286), (149, 530146), (278, 284143), (298, 265073), (1907, 41422), (3814, 20711)]