20808862064

素因数分解:

$2^4\times {\mathrm{4973}}^1\times {\mathrm{261523}}^1$

素因数の和:266504

約数の個数: 20

約数和(自身を含む): 40325431656

約数和(自身を除く): 19516569592

約数列:

[1, 2, 4, 8, 16, 4973, 9946, 19892, 39784, 79568, 261523, 523046, 1046092, 2092184, 4184368, 1300553879, 2601107758, 5202215516, 10404431032, 20808862064]

約数ペア:

[(1, 20808862064), (2, 10404431032), (4, 5202215516), (8, 2601107758), (16, 1300553879), (4973, 4184368), (9946, 2092184), (19892, 1046092), (39784, 523046), (79568, 261523)]