1920005857

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 2665843488

約数和(自身を除く): 745837631

約数列:

[1, 7, 11, 17, 43, 49, 77, 119, 121, 187, 301, 443, 473, 539, 731, 833, 847, 1309, 2057, 2107, 3101, 3311, 4873, 5117, 5203, 5929, 7531, 8041, 9163, 14399, 19049, 21707, 23177, 34111, 35819, 36421, 52717, 53603, 56287, 82841, 88451, 100793, 133343, 209539, 238777, 254947, 323833, 369019, 375221, 394009, 579887, 619157, 911251, 933401, 1466773, 2266831, 2304929, 2626547, 3562163, 4059209, 4334099, 6378757, 10267411, 15867817, 16134503, 24935141, 39183793, 44651299, 112941521, 174545987, 274286551, 1920005857]

約数ペア:

[(1, 1920005857), (7, 274286551), (11, 174545987), (17, 112941521), (43, 44651299), (49, 39183793), (77, 24935141), (119, 16134503), (121, 15867817), (187, 10267411), (301, 6378757), (443, 4334099), (473, 4059209), (539, 3562163), (731, 2626547), (833, 2304929), (847, 2266831), (1309, 1466773), (2057, 933401), (2107, 911251), (3101, 619157), (3311, 579887), (4873, 394009), (5117, 375221), (5203, 369019), (5929, 323833), (7531, 254947), (8041, 238777), (9163, 209539), (14399, 133343), (19049, 100793), (21707, 88451), (23177, 82841), (34111, 56287), (35819, 53603), (36421, 52717)]