18559540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17509}}^1$

素因数の和:17571

約数の個数: 24

約数和(自身を含む): 39712680

約数和(自身を除く): 21153140

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17509, 35018, 70036, 87545, 175090, 350180, 927977, 1855954, 3711908, 4639885, 9279770, 18559540]

約数ペア:

[(1, 18559540), (2, 9279770), (4, 4639885), (5, 3711908), (10, 1855954), (20, 927977), (53, 350180), (106, 175090), (212, 87545), (265, 70036), (530, 35018), (1060, 17509)]