20161784048

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{649877}}^1$

素因数の和:650169

約数の個数: 40

約数和(自身を含む): 44805188832

約数和(自身を除く): 24643404784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 1108, 1939, 2216, 3878, 4432, 7756, 15512, 31024, 649877, 1299754, 2599508, 4549139, 5199016, 9098278, 10398032, 18196556, 36393112, 72786224, 180015929, 360031858, 720063716, 1260111503, 1440127432, 2520223006, 2880254864, 5040446012, 10080892024, 20161784048]

約数ペア:

[(1, 20161784048), (2, 10080892024), (4, 5040446012), (7, 2880254864), (8, 2520223006), (14, 1440127432), (16, 1260111503), (28, 720063716), (56, 360031858), (112, 180015929), (277, 72786224), (554, 36393112), (1108, 18196556), (1939, 10398032), (2216, 9098278), (3878, 5199016), (4432, 4549139), (7756, 2599508), (15512, 1299754), (31024, 649877)]