208521796

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{4019}}^1$

素因数の和:4156

約数の個数: 48

約数和(自身を含む): 445737600

約数和(自身を除く): 237215804

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 109, 119, 218, 238, 436, 476, 763, 1526, 1853, 3052, 3706, 4019, 7412, 8038, 12971, 16076, 25942, 28133, 51884, 56266, 68323, 112532, 136646, 273292, 438071, 478261, 876142, 956522, 1752284, 1913044, 3066497, 6132994, 7447207, 12265988, 14894414, 29788828, 52130449, 104260898, 208521796]

約数ペア:

[(1, 208521796), (2, 104260898), (4, 52130449), (7, 29788828), (14, 14894414), (17, 12265988), (28, 7447207), (34, 6132994), (68, 3066497), (109, 1913044), (119, 1752284), (218, 956522), (238, 876142), (436, 478261), (476, 438071), (763, 273292), (1526, 136646), (1853, 112532), (3052, 68323), (3706, 56266), (4019, 51884), (7412, 28133), (8038, 25942), (12971, 16076)]