19930715

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 31933440

約数和(自身を除く): 12002725

約数列:

[1, 5, 7, 17, 19, 35, 41, 43, 85, 95, 119, 133, 205, 215, 287, 301, 323, 595, 665, 697, 731, 779, 817, 1435, 1505, 1615, 1763, 2261, 3485, 3655, 3895, 4085, 4879, 5117, 5453, 5719, 8815, 11305, 12341, 13243, 13889, 24395, 25585, 27265, 28595, 29971, 33497, 61705, 66215, 69445, 92701, 97223, 149855, 167485, 209797, 234479, 463505, 486115, 569449, 1048985, 1172395, 2847245, 3986143, 19930715]

約数ペア:

[(1, 19930715), (5, 3986143), (7, 2847245), (17, 1172395), (19, 1048985), (35, 569449), (41, 486115), (43, 463505), (85, 234479), (95, 209797), (119, 167485), (133, 149855), (205, 97223), (215, 92701), (287, 69445), (301, 66215), (323, 61705), (595, 33497), (665, 29971), (697, 28595), (731, 27265), (779, 25585), (817, 24395), (1435, 13889), (1505, 13243), (1615, 12341), (1763, 11305), (2261, 8815), (3485, 5719), (3655, 5453), (3895, 5117), (4085, 4879)]