19699420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75767}}^1$

素因数の和:75789

約数の個数: 24

約数和(自身を含む): 44551584

約数和(自身を除く): 24852164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75767, 151534, 303068, 378835, 757670, 984971, 1515340, 1969942, 3939884, 4924855, 9849710, 19699420]

約数ペア:

[(1, 19699420), (2, 9849710), (4, 4924855), (5, 3939884), (10, 1969942), (13, 1515340), (20, 984971), (26, 757670), (52, 378835), (65, 303068), (130, 151534), (260, 75767)]