51551220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{122741}}^1$

素因数の和:122760

約数の個数: 48

約数和(自身を含む): 164965248

約数和(自身を除く): 113414028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 122741, 245482, 368223, 490964, 613705, 736446, 859187, 1227410, 1472892, 1718374, 1841115, 2454820, 2577561, 3436748, 3682230, 4295935, 5155122, 7364460, 8591870, 10310244, 12887805, 17183740, 25775610, 51551220]

約数ペア:

[(1, 51551220), (2, 25775610), (3, 17183740), (4, 12887805), (5, 10310244), (6, 8591870), (7, 7364460), (10, 5155122), (12, 4295935), (14, 3682230), (15, 3436748), (20, 2577561), (21, 2454820), (28, 1841115), (30, 1718374), (35, 1472892), (42, 1227410), (60, 859187), (70, 736446), (84, 613705), (105, 490964), (140, 368223), (210, 245482), (420, 122741)]