81439808

素因数分解:

$2^6\times {\mathrm{643}}^1\times {\mathrm{1979}}^1$

素因数の和:2634

約数の個数: 28

約数和(自身を含む): 161940240

約数和(自身を除く): 80500432

約数列:

[1, 2, 4, 8, 16, 32, 64, 643, 1286, 1979, 2572, 3958, 5144, 7916, 10288, 15832, 20576, 31664, 41152, 63328, 126656, 1272497, 2544994, 5089988, 10179976, 20359952, 40719904, 81439808]

約数ペア:

[(1, 81439808), (2, 40719904), (4, 20359952), (8, 10179976), (16, 5089988), (32, 2544994), (64, 1272497), (643, 126656), (1286, 63328), (1979, 41152), (2572, 31664), (3958, 20576), (5144, 15832), (7916, 10288)]