13890505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:177

約数の個数: 24

約数和(自身を含む): 18139968

約数和(自身を除く): 4249463

約数列:

[1, 5, 23, 43, 53, 115, 215, 265, 989, 1219, 2279, 2809, 4945, 6095, 11395, 14045, 52417, 64607, 120787, 262085, 323035, 603935, 2778101, 13890505]

約数ペア:

[(1, 13890505), (5, 2778101), (23, 603935), (43, 323035), (53, 262085), (115, 120787), (215, 64607), (265, 52417), (989, 14045), (1219, 11395), (2279, 6095), (2809, 4945)]