81338128

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{50333}}^1$

素因数の和:50442

約数の個数: 20

約数和(自身を含む): 159156108

約数和(自身を除く): 77817980

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 50333, 100666, 201332, 402664, 805328, 5083633, 10167266, 20334532, 40669064, 81338128]

約数ペア:

[(1, 81338128), (2, 40669064), (4, 20334532), (8, 10167266), (16, 5083633), (101, 805328), (202, 402664), (404, 201332), (808, 100666), (1616, 50333)]