28078284

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{179989}}^1$

素因数の和:180009

約数の個数: 24

約数和(自身を含む): 70556080

約数和(自身を除く): 42477796

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 179989, 359978, 539967, 719956, 1079934, 2159868, 2339857, 4679714, 7019571, 9359428, 14039142, 28078284]

約数ペア:

[(1, 28078284), (2, 14039142), (3, 9359428), (4, 7019571), (6, 4679714), (12, 2339857), (13, 2159868), (26, 1079934), (39, 719956), (52, 539967), (78, 359978), (156, 179989)]