28456395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 54259200

約数和(自身を除く): 25802805

約数列:

[1, 3, 5, 11, 15, 19, 29, 33, 55, 57, 87, 95, 145, 165, 209, 285, 313, 319, 435, 551, 627, 939, 957, 1045, 1565, 1595, 1653, 2755, 3135, 3443, 4695, 4785, 5947, 6061, 8265, 9077, 10329, 17215, 17841, 18183, 27231, 29735, 30305, 45385, 51645, 65417, 89205, 90915, 99847, 136155, 172463, 196251, 299541, 327085, 499235, 517389, 862315, 981255, 1497705, 1897093, 2586945, 5691279, 9485465, 28456395]

約数ペア:

[(1, 28456395), (3, 9485465), (5, 5691279), (11, 2586945), (15, 1897093), (19, 1497705), (29, 981255), (33, 862315), (55, 517389), (57, 499235), (87, 327085), (95, 299541), (145, 196251), (165, 172463), (209, 136155), (285, 99847), (313, 90915), (319, 89205), (435, 65417), (551, 51645), (627, 45385), (939, 30305), (957, 29735), (1045, 27231), (1565, 18183), (1595, 17841), (1653, 17215), (2755, 10329), (3135, 9077), (3443, 8265), (4695, 6061), (4785, 5947)]