81019148

素因数分解:

$2^2\times 7^2\times {\mathrm{353}}^1\times {\mathrm{1171}}^1$

素因数の和:1542

約数の個数: 36

約数和(自身を含む): 165540312

約数和(自身を除く): 84521164

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 353, 706, 1171, 1412, 2342, 2471, 4684, 4942, 8197, 9884, 16394, 17297, 32788, 34594, 57379, 69188, 114758, 229516, 413363, 826726, 1653452, 2893541, 5787082, 11574164, 20254787, 40509574, 81019148]

約数ペア:

[(1, 81019148), (2, 40509574), (4, 20254787), (7, 11574164), (14, 5787082), (28, 2893541), (49, 1653452), (98, 826726), (196, 413363), (353, 229516), (706, 114758), (1171, 69188), (1412, 57379), (2342, 34594), (2471, 32788), (4684, 17297), (4942, 16394), (8197, 9884)]