27990170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{215309}}^1$

素因数の和:215329

約数の個数: 16

約数和(自身を含む): 54258120

約数和(自身を除く): 26267950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 215309, 430618, 1076545, 2153090, 2799017, 5598034, 13995085, 27990170]

約数ペア:

[(1, 27990170), (2, 13995085), (5, 5598034), (10, 2799017), (13, 2153090), (26, 1076545), (65, 430618), (130, 215309)]