28690475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^2$

素因数の和:93

約数の個数: 54

約数和(自身を含む): 43511724

約数和(自身を除く): 14821249

約数列:

[1, 5, 11, 17, 19, 25, 55, 85, 95, 187, 209, 275, 289, 323, 361, 425, 475, 935, 1045, 1445, 1615, 1805, 3179, 3553, 3971, 4675, 5225, 5491, 6137, 7225, 8075, 9025, 15895, 17765, 19855, 27455, 30685, 60401, 67507, 79475, 88825, 99275, 104329, 137275, 153425, 302005, 337535, 521645, 1147619, 1510025, 1687675, 2608225, 5738095, 28690475]

約数ペア:

[(1, 28690475), (5, 5738095), (11, 2608225), (17, 1687675), (19, 1510025), (25, 1147619), (55, 521645), (85, 337535), (95, 302005), (187, 153425), (209, 137275), (275, 104329), (289, 99275), (323, 88825), (361, 79475), (425, 67507), (475, 60401), (935, 30685), (1045, 27455), (1445, 19855), (1615, 17765), (1805, 15895), (3179, 9025), (3553, 8075), (3971, 7225), (4675, 6137), (5225, 5491)]