20120445

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5387}}^1$

素因数の和:5481

約数の個数: 24

約数和(自身を含む): 35302176

約数和(自身を除く): 15181731

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5387, 16161, 26935, 48483, 80805, 242415, 447121, 1341363, 2235605, 4024089, 6706815, 20120445]

約数ペア:

[(1, 20120445), (3, 6706815), (5, 4024089), (9, 2235605), (15, 1341363), (45, 447121), (83, 242415), (249, 80805), (415, 48483), (747, 26935), (1245, 16161), (3735, 5387)]