20511088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3181}}^1$

素因数の和:3233

約数の個数: 40

約数和(自身を含む): 44191616

約数和(自身を除く): 23680528

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3181, 3224, 6362, 6448, 12724, 25448, 41353, 50896, 82706, 98611, 165412, 197222, 330824, 394444, 661648, 788888, 1281943, 1577776, 2563886, 5127772, 10255544, 20511088]

約数ペア:

[(1, 20511088), (2, 10255544), (4, 5127772), (8, 2563886), (13, 1577776), (16, 1281943), (26, 788888), (31, 661648), (52, 394444), (62, 330824), (104, 197222), (124, 165412), (208, 98611), (248, 82706), (403, 50896), (496, 41353), (806, 25448), (1612, 12724), (3181, 6448), (3224, 6362)]