279797960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{538073}}^1$

素因数の和:538097

約数の個数: 32

約数和(自身を含む): 677973240

約数和(自身を除く): 398175280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 538073, 1076146, 2152292, 2690365, 4304584, 5380730, 6994949, 10761460, 13989898, 21522920, 27979796, 34974745, 55959592, 69949490, 139898980, 279797960]

約数ペア:

[(1, 279797960), (2, 139898980), (4, 69949490), (5, 55959592), (8, 34974745), (10, 27979796), (13, 21522920), (20, 13989898), (26, 10761460), (40, 6994949), (52, 5380730), (65, 4304584), (104, 2690365), (130, 2152292), (260, 1076146), (520, 538073)]