20197907536

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{681257}}^1$

素因数の和:681391

約数の個数: 40

約数和(自身を含む): 41815616040

約数和(自身を除く): 21617708504

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 218, 272, 436, 872, 1744, 1853, 3706, 7412, 14824, 29648, 681257, 1362514, 2725028, 5450056, 10900112, 11581369, 23162738, 46325476, 74257013, 92650952, 148514026, 185301904, 297028052, 594056104, 1188112208, 1262369221, 2524738442, 5049476884, 10098953768, 20197907536]

約数ペア:

[(1, 20197907536), (2, 10098953768), (4, 5049476884), (8, 2524738442), (16, 1262369221), (17, 1188112208), (34, 594056104), (68, 297028052), (109, 185301904), (136, 148514026), (218, 92650952), (272, 74257013), (436, 46325476), (872, 23162738), (1744, 11581369), (1853, 10900112), (3706, 5450056), (7412, 2725028), (14824, 1362514), (29648, 681257)]