18679810

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2309}}^1$

素因数の和:3125

約数の個数: 16

約数和(自身を含む): 33679800

約数和(自身を除く): 14999990

約数列:

[1, 2, 5, 10, 809, 1618, 2309, 4045, 4618, 8090, 11545, 23090, 1867981, 3735962, 9339905, 18679810]

約数ペア:

[(1, 18679810), (2, 9339905), (5, 3735962), (10, 1867981), (809, 23090), (1618, 11545), (2309, 8090), (4045, 4618)]