206817680

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2593}}^1$

素因数の和:3603

約数の個数: 40

約数和(自身を含む): 481519032

約数和(自身を除く): 274701352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1994, 2593, 3988, 4985, 5186, 7976, 9970, 10372, 12965, 15952, 19940, 20744, 25930, 39880, 41488, 51860, 79760, 103720, 207440, 2585221, 5170442, 10340884, 12926105, 20681768, 25852210, 41363536, 51704420, 103408840, 206817680]

約数ペア:

[(1, 206817680), (2, 103408840), (4, 51704420), (5, 41363536), (8, 25852210), (10, 20681768), (16, 12926105), (20, 10340884), (40, 5170442), (80, 2585221), (997, 207440), (1994, 103720), (2593, 79760), (3988, 51860), (4985, 41488), (5186, 39880), (7976, 25930), (9970, 20744), (10372, 19940), (12965, 15952)]