208136460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495563}}^1$

素因数の和:495582

約数の個数: 48

約数和(自身を含む): 666038016

約数和(自身を除く): 457901556

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, 495563, 991126, 1486689, 1982252, 2477815, 2973378, 3468941, 4955630, 5946756, 6937882, 7433445, 9911260, 10406823, 13875764, 14866890, 17344705, 20813646, 29733780, 34689410, 41627292, 52034115, 69378820, 104068230, 208136460]

約数ペア:

[(1, 208136460), (2, 104068230), (3, 69378820), (4, 52034115), (5, 41627292), (6, 34689410), (7, 29733780), (10, 20813646), (12, 17344705), (14, 14866890), (15, 13875764), (20, 10406823), (21, 9911260), (28, 7433445), (30, 6937882), (35, 5946756), (42, 4955630), (60, 3468941), (70, 2973378), (84, 2477815), (105, 1982252), (140, 1486689), (210, 991126), (420, 495563)]