17820140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68539}}^1$

素因数の和:68561

約数の個数: 24

約数和(自身を含む): 40301520

約数和(自身を除く): 22481380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 68539, 137078, 274156, 342695, 685390, 891007, 1370780, 1782014, 3564028, 4455035, 8910070, 17820140]

約数ペア:

[(1, 17820140), (2, 8910070), (4, 4455035), (5, 3564028), (10, 1782014), (13, 1370780), (20, 891007), (26, 685390), (52, 342695), (65, 274156), (130, 137078), (260, 68539)]