217339780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17443}}^1$

素因数の和:17548

約数の個数: 48

約数和(自身を含む): 527506560

約数和(自身を除く): 310166780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 17443, 34886, 69772, 87215, 122101, 174430, 244202, 348860, 488404, 610505, 1221010, 1552427, 2442020, 3104854, 6209708, 7762135, 10866989, 15524270, 21733978, 31048540, 43467956, 54334945, 108669890, 217339780]

約数ペア:

[(1, 217339780), (2, 108669890), (4, 54334945), (5, 43467956), (7, 31048540), (10, 21733978), (14, 15524270), (20, 10866989), (28, 7762135), (35, 6209708), (70, 3104854), (89, 2442020), (140, 1552427), (178, 1221010), (356, 610505), (445, 488404), (623, 348860), (890, 244202), (1246, 174430), (1780, 122101), (2492, 87215), (3115, 69772), (6230, 34886), (12460, 17443)]