68546020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 147435120

約数和(自身を除く): 78889100

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 178, 194, 356, 388, 397, 445, 485, 794, 890, 970, 1588, 1780, 1940, 1985, 3970, 7940, 8633, 17266, 34532, 35333, 38509, 43165, 70666, 77018, 86330, 141332, 154036, 172660, 176665, 192545, 353330, 385090, 706660, 770180, 3427301, 6854602, 13709204, 17136505, 34273010, 68546020]

約数ペア:

[(1, 68546020), (2, 34273010), (4, 17136505), (5, 13709204), (10, 6854602), (20, 3427301), (89, 770180), (97, 706660), (178, 385090), (194, 353330), (356, 192545), (388, 176665), (397, 172660), (445, 154036), (485, 141332), (794, 86330), (890, 77018), (970, 70666), (1588, 43165), (1780, 38509), (1940, 35333), (1985, 34532), (3970, 17266), (7940, 8633)]