520028780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{1483}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 1110684960

約数和(自身を除く): 590656180

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 197, 356, 394, 445, 788, 890, 985, 1483, 1780, 1970, 2966, 3940, 5932, 7415, 14830, 17533, 29660, 35066, 70132, 87665, 131987, 175330, 263974, 292151, 350660, 527948, 584302, 659935, 1168604, 1319870, 1460755, 2639740, 2921510, 5843020, 26001439, 52002878, 104005756, 130007195, 260014390, 520028780]

約数ペア:

[(1, 520028780), (2, 260014390), (4, 130007195), (5, 104005756), (10, 52002878), (20, 26001439), (89, 5843020), (178, 2921510), (197, 2639740), (356, 1460755), (394, 1319870), (445, 1168604), (788, 659935), (890, 584302), (985, 527948), (1483, 350660), (1780, 292151), (1970, 263974), (2966, 175330), (3940, 131987), (5932, 87665), (7415, 70132), (14830, 35066), (17533, 29660)]