19504420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75017}}^1$

素因数の和:75039

約数の個数: 24

約数和(自身を含む): 44110584

約数和(自身を除く): 24606164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75017, 150034, 300068, 375085, 750170, 975221, 1500340, 1950442, 3900884, 4876105, 9752210, 19504420]

約数ペア:

[(1, 19504420), (2, 9752210), (4, 4876105), (5, 3900884), (10, 1950442), (13, 1500340), (20, 975221), (26, 750170), (52, 375085), (65, 300068), (130, 150034), (260, 75017)]