20894840

素因数分解:

$2^3\times 5^1\times {\mathrm{522371}}^1$

素因数の和:522382

約数の個数: 16

約数和(自身を含む): 47013480

約数和(自身を除く): 26118640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522371, 1044742, 2089484, 2611855, 4178968, 5223710, 10447420, 20894840]

約数ペア:

[(1, 20894840), (2, 10447420), (4, 5223710), (5, 4178968), (8, 2611855), (10, 2089484), (20, 1044742), (40, 522371)]