81791325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4721}}^1$

素因数の和:4755

約数の個数: 72

約数和(自身を含む): 182684736

約数和(自身を除く): 100893411

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 55, 63, 75, 77, 99, 105, 165, 175, 225, 231, 275, 315, 385, 495, 525, 693, 825, 1155, 1575, 1925, 2475, 3465, 4721, 5775, 14163, 17325, 23605, 33047, 42489, 51931, 70815, 99141, 118025, 155793, 165235, 212445, 259655, 297423, 354075, 363517, 467379, 495705, 778965, 826175, 1062225, 1090551, 1298275, 1487115, 1817585, 2336895, 2478525, 3271653, 3894825, 5452755, 7435575, 9087925, 11684475, 16358265, 27263775, 81791325]

約数ペア:

[(1, 81791325), (3, 27263775), (5, 16358265), (7, 11684475), (9, 9087925), (11, 7435575), (15, 5452755), (21, 3894825), (25, 3271653), (33, 2478525), (35, 2336895), (45, 1817585), (55, 1487115), (63, 1298275), (75, 1090551), (77, 1062225), (99, 826175), (105, 778965), (165, 495705), (175, 467379), (225, 363517), (231, 354075), (275, 297423), (315, 259655), (385, 212445), (495, 165235), (525, 155793), (693, 118025), (825, 99141), (1155, 70815), (1575, 51931), (1925, 42489), (2475, 33047), (3465, 23605), (4721, 17325), (5775, 14163)]