206890280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{166847}}^1$

素因数の和:166889

約数の個数: 32

約数和(自身を含む): 480522240

約数和(自身を除く): 273631960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 166847, 333694, 667388, 834235, 1334776, 1668470, 3336940, 5172257, 6673880, 10344514, 20689028, 25861285, 41378056, 51722570, 103445140, 206890280]

約数ペア:

[(1, 206890280), (2, 103445140), (4, 51722570), (5, 41378056), (8, 25861285), (10, 20689028), (20, 10344514), (31, 6673880), (40, 5172257), (62, 3336940), (124, 1668470), (155, 1334776), (248, 834235), (310, 667388), (620, 333694), (1240, 166847)]