20322760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8329}}^1$

素因数の和:8401

約数の個数: 32

約数和(自身を含む): 46481400

約数和(自身を除く): 26158640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8329, 16658, 33316, 41645, 66632, 83290, 166580, 333160, 508069, 1016138, 2032276, 2540345, 4064552, 5080690, 10161380, 20322760]

約数ペア:

[(1, 20322760), (2, 10161380), (4, 5080690), (5, 4064552), (8, 2540345), (10, 2032276), (20, 1016138), (40, 508069), (61, 333160), (122, 166580), (244, 83290), (305, 66632), (488, 41645), (610, 33316), (1220, 16658), (2440, 8329)]