821077970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{22391}}^1$

素因数の和:22610

約数の個数: 32

約数和(自身を含む): 1563857280

約数和(自身を除く): 742779310

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 193, 386, 965, 1930, 3667, 7334, 18335, 22391, 36670, 44782, 111955, 223910, 425429, 850858, 2127145, 4254290, 4321463, 8642926, 21607315, 43214630, 82107797, 164215594, 410538985, 821077970]

約数ペア:

[(1, 821077970), (2, 410538985), (5, 164215594), (10, 82107797), (19, 43214630), (38, 21607315), (95, 8642926), (190, 4321463), (193, 4254290), (386, 2127145), (965, 850858), (1930, 425429), (3667, 223910), (7334, 111955), (18335, 44782), (22391, 36670)]