18996380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73063}}^1$

素因数の和:73085

約数の個数: 24

約数和(自身を含む): 42961632

約数和(自身を除く): 23965252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 73063, 146126, 292252, 365315, 730630, 949819, 1461260, 1899638, 3799276, 4749095, 9498190, 18996380]

約数ペア:

[(1, 18996380), (2, 9498190), (4, 4749095), (5, 3799276), (10, 1899638), (13, 1461260), (20, 949819), (26, 730630), (52, 365315), (65, 292252), (130, 146126), (260, 73063)]