18381025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2459}}^1$

素因数の和:2505

約数の個数: 24

約数和(自身を含む): 25623360

約数和(自身を除く): 7242335

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2459, 7475, 12295, 31967, 56557, 61475, 159835, 282785, 735241, 799175, 1413925, 3676205, 18381025]

約数ペア:

[(1, 18381025), (5, 3676205), (13, 1413925), (23, 799175), (25, 735241), (65, 282785), (115, 159835), (299, 61475), (325, 56557), (575, 31967), (1495, 12295), (2459, 7475)]