1689765

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1$

素因数の和:63

約数の個数: 72

約数和(自身を含む): 3638880

約数和(自身を除く): 1949115

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 49, 55, 57, 77, 95, 105, 121, 133, 147, 165, 209, 231, 245, 285, 363, 385, 399, 539, 605, 627, 665, 735, 847, 931, 1045, 1155, 1463, 1617, 1815, 1995, 2299, 2541, 2695, 2793, 3135, 4235, 4389, 4655, 5929, 6897, 7315, 8085, 10241, 11495, 12705, 13965, 16093, 17787, 21945, 29645, 30723, 34485, 48279, 51205, 80465, 88935, 112651, 153615, 241395, 337953, 563255, 1689765]

約数ペア:

[(1, 1689765), (3, 563255), (5, 337953), (7, 241395), (11, 153615), (15, 112651), (19, 88935), (21, 80465), (33, 51205), (35, 48279), (49, 34485), (55, 30723), (57, 29645), (77, 21945), (95, 17787), (105, 16093), (121, 13965), (133, 12705), (147, 11495), (165, 10241), (209, 8085), (231, 7315), (245, 6897), (285, 5929), (363, 4655), (385, 4389), (399, 4235), (539, 3135), (605, 2793), (627, 2695), (665, 2541), (735, 2299), (847, 1995), (931, 1815), (1045, 1617), (1155, 1463)]