28329860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108961}}^1$

素因数の和:108983

約数の個数: 24

約数和(自身を含む): 64069656

約数和(自身を除く): 35739796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108961, 217922, 435844, 544805, 1089610, 1416493, 2179220, 2832986, 5665972, 7082465, 14164930, 28329860]

約数ペア:

[(1, 28329860), (2, 14164930), (4, 7082465), (5, 5665972), (10, 2832986), (13, 2179220), (20, 1416493), (26, 1089610), (52, 544805), (65, 435844), (130, 217922), (260, 108961)]