15781425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 30081408

約数和(自身を除く): 14299983

約数列:

[1, 3, 5, 11, 15, 25, 33, 37, 47, 55, 75, 111, 121, 141, 165, 185, 235, 275, 363, 407, 517, 555, 605, 705, 825, 925, 1175, 1221, 1551, 1739, 1815, 2035, 2585, 2775, 3025, 3525, 4477, 5217, 5687, 6105, 7755, 8695, 9075, 10175, 12925, 13431, 17061, 19129, 22385, 26085, 28435, 30525, 38775, 43475, 57387, 67155, 85305, 95645, 111925, 130425, 142175, 210419, 286935, 335775, 426525, 478225, 631257, 1052095, 1434675, 3156285, 5260475, 15781425]

約数ペア:

[(1, 15781425), (3, 5260475), (5, 3156285), (11, 1434675), (15, 1052095), (25, 631257), (33, 478225), (37, 426525), (47, 335775), (55, 286935), (75, 210419), (111, 142175), (121, 130425), (141, 111925), (165, 95645), (185, 85305), (235, 67155), (275, 57387), (363, 43475), (407, 38775), (517, 30525), (555, 28435), (605, 26085), (705, 22385), (825, 19129), (925, 17061), (1175, 13431), (1221, 12925), (1551, 10175), (1739, 9075), (1815, 8695), (2035, 7755), (2585, 6105), (2775, 5687), (3025, 5217), (3525, 4477)]