13480777720

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{509863}}^1$

素因数の和:510535

約数の個数: 32

約数和(自身を含む): 30377697120

約数和(自身を除く): 16896919400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 26440, 509863, 1019726, 2039452, 2549315, 4078904, 5098630, 10197260, 20394520, 337019443, 674038886, 1348077772, 1685097215, 2696155544, 3370194430, 6740388860, 13480777720]

約数ペア:

[(1, 13480777720), (2, 6740388860), (4, 3370194430), (5, 2696155544), (8, 1685097215), (10, 1348077772), (20, 674038886), (40, 337019443), (661, 20394520), (1322, 10197260), (2644, 5098630), (3305, 4078904), (5288, 2549315), (6610, 2039452), (13220, 1019726), (26440, 509863)]