13478740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 31135104

約数和(自身を除く): 17656364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 311, 394, 622, 788, 985, 1244, 1555, 1970, 2167, 3110, 3421, 3940, 4334, 6220, 6842, 8668, 10835, 13684, 17105, 21670, 34210, 43340, 61267, 68420, 122534, 245068, 306335, 612670, 673937, 1225340, 1347874, 2695748, 3369685, 6739370, 13478740]

約数ペア:

[(1, 13478740), (2, 6739370), (4, 3369685), (5, 2695748), (10, 1347874), (11, 1225340), (20, 673937), (22, 612670), (44, 306335), (55, 245068), (110, 122534), (197, 68420), (220, 61267), (311, 43340), (394, 34210), (622, 21670), (788, 17105), (985, 13684), (1244, 10835), (1555, 8668), (1970, 6842), (2167, 6220), (3110, 4334), (3421, 3940)]