209549680

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{8263}}^1$

素因数の和:8593

約数の個数: 40

約数和(自身を含む): 488799072

約数和(自身を除く): 279249392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 2536, 3170, 5072, 6340, 8263, 12680, 16526, 25360, 33052, 41315, 66104, 82630, 132208, 165260, 330520, 661040, 2619371, 5238742, 10477484, 13096855, 20954968, 26193710, 41909936, 52387420, 104774840, 209549680]

約数ペア:

[(1, 209549680), (2, 104774840), (4, 52387420), (5, 41909936), (8, 26193710), (10, 20954968), (16, 13096855), (20, 10477484), (40, 5238742), (80, 2619371), (317, 661040), (634, 330520), (1268, 165260), (1585, 132208), (2536, 82630), (3170, 66104), (5072, 41315), (6340, 33052), (8263, 25360), (12680, 16526)]