20655142768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3203341}}^1$

素因数の和:3203393

約数の個数: 40

約数和(自身を含む): 44488013696

約数和(自身を除く): 23832870928

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 3203341, 6406682, 12813364, 25626728, 41643433, 51253456, 83286866, 99303571, 166573732, 198607142, 333147464, 397214284, 666294928, 794428568, 1290946423, 1588857136, 2581892846, 5163785692, 10327571384, 20655142768]

約数ペア:

[(1, 20655142768), (2, 10327571384), (4, 5163785692), (8, 2581892846), (13, 1588857136), (16, 1290946423), (26, 794428568), (31, 666294928), (52, 397214284), (62, 333147464), (104, 198607142), (124, 166573732), (208, 99303571), (248, 83286866), (403, 51253456), (496, 41643433), (806, 25626728), (1612, 12813364), (3224, 6406682), (6448, 3203341)]