78198540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{186187}}^1$

素因数の和:186206

約数の個数: 48

約数和(自身を含む): 250236672

約数和(自身を除く): 172038132

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, 186187, 372374, 558561, 744748, 930935, 1117122, 1303309, 1861870, 2234244, 2606618, 2792805, 3723740, 3909927, 5213236, 5585610, 6516545, 7819854, 11171220, 13033090, 15639708, 19549635, 26066180, 39099270, 78198540]

約数ペア:

[(1, 78198540), (2, 39099270), (3, 26066180), (4, 19549635), (5, 15639708), (6, 13033090), (7, 11171220), (10, 7819854), (12, 6516545), (14, 5585610), (15, 5213236), (20, 3909927), (21, 3723740), (28, 2792805), (30, 2606618), (35, 2234244), (42, 1861870), (60, 1303309), (70, 1117122), (84, 930935), (105, 744748), (140, 558561), (210, 372374), (420, 186187)]