31781115

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 57028608

約数和(自身を除く): 25247493

約数列:

[1, 3, 5, 9, 15, 45, 67, 83, 127, 201, 249, 335, 381, 415, 603, 635, 747, 1005, 1143, 1245, 1905, 3015, 3735, 5561, 5715, 8509, 10541, 16683, 25527, 27805, 31623, 42545, 50049, 52705, 76581, 83415, 94869, 127635, 158115, 250245, 382905, 474345, 706247, 2118741, 3531235, 6356223, 10593705, 31781115]

約数ペア:

[(1, 31781115), (3, 10593705), (5, 6356223), (9, 3531235), (15, 2118741), (45, 706247), (67, 474345), (83, 382905), (127, 250245), (201, 158115), (249, 127635), (335, 94869), (381, 83415), (415, 76581), (603, 52705), (635, 50049), (747, 42545), (1005, 31623), (1143, 27805), (1245, 25527), (1905, 16683), (3015, 10541), (3735, 8509), (5561, 5715)]