20808220216

素因数分解:

$2^3\times 7^1\times {\mathrm{1607}}^1\times {\mathrm{231223}}^1$

素因数の和:232843

約数の個数: 32

約数和(自身を含む): 44616983040

約数和(自身を除く): 23808762824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1607, 3214, 6428, 11249, 12856, 22498, 44996, 89992, 231223, 462446, 924892, 1618561, 1849784, 3237122, 6474244, 12948488, 371575361, 743150722, 1486301444, 2601027527, 2972602888, 5202055054, 10404110108, 20808220216]

約数ペア:

[(1, 20808220216), (2, 10404110108), (4, 5202055054), (7, 2972602888), (8, 2601027527), (14, 1486301444), (28, 743150722), (56, 371575361), (1607, 12948488), (3214, 6474244), (6428, 3237122), (11249, 1849784), (12856, 1618561), (22498, 924892), (44996, 462446), (89992, 231223)]