7642905

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 12870144

約数和(自身を除く): 5227239

約数列:

[1, 3, 5, 15, 37, 47, 111, 141, 185, 235, 293, 555, 705, 879, 1465, 1739, 4395, 5217, 8695, 10841, 13771, 26085, 32523, 41313, 54205, 68855, 162615, 206565, 509527, 1528581, 2547635, 7642905]

約数ペア:

[(1, 7642905), (3, 2547635), (5, 1528581), (15, 509527), (37, 206565), (47, 162615), (111, 68855), (141, 54205), (185, 41313), (235, 32523), (293, 26085), (555, 13771), (705, 10841), (879, 8695), (1465, 5217), (1739, 4395)]