81194805

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3931}}^1$

素因数の和:3968

約数の個数: 48

約数和(自身を含む): 154574784

約数和(自身を除く): 73379979

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 3931, 4131, 6885, 11793, 19655, 20655, 35379, 58965, 66827, 106137, 176895, 200481, 318411, 334135, 530685, 601443, 955233, 1002405, 1592055, 1804329, 3007215, 4776165, 5412987, 9021645, 16238961, 27064935, 81194805]

約数ペア:

[(1, 81194805), (3, 27064935), (5, 16238961), (9, 9021645), (15, 5412987), (17, 4776165), (27, 3007215), (45, 1804329), (51, 1592055), (81, 1002405), (85, 955233), (135, 601443), (153, 530685), (243, 334135), (255, 318411), (405, 200481), (459, 176895), (765, 106137), (1215, 66827), (1377, 58965), (2295, 35379), (3931, 20655), (4131, 19655), (6885, 11793)]