18164275

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 23509904

約数和(自身を除く): 5345629

約数列:

[1, 5, 25, 43, 61, 215, 277, 305, 1075, 1385, 1525, 2623, 6925, 11911, 13115, 16897, 59555, 65575, 84485, 297775, 422425, 726571, 3632855, 18164275]

約数ペア:

[(1, 18164275), (5, 3632855), (25, 726571), (43, 422425), (61, 297775), (215, 84485), (277, 65575), (305, 59555), (1075, 16897), (1385, 13115), (1525, 11911), (2623, 6925)]