68819180

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{13709}}^1$

素因数の和:13969

約数の個数: 24

約数和(自身を含む): 145106640

約数和(自身を除く): 76287460

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 13709, 27418, 54836, 68545, 137090, 274180, 3440959, 6881918, 13763836, 17204795, 34409590, 68819180]

約数ペア:

[(1, 68819180), (2, 34409590), (4, 17204795), (5, 13763836), (10, 6881918), (20, 3440959), (251, 274180), (502, 137090), (1004, 68545), (1255, 54836), (2510, 27418), (5020, 13709)]