20021128

素因数分解:

$2^3\times {\mathrm{79}}^2\times {\mathrm{401}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 38115630

約数和(自身を除く): 18094502

約数列:

[1, 2, 4, 8, 79, 158, 316, 401, 632, 802, 1604, 3208, 6241, 12482, 24964, 31679, 49928, 63358, 126716, 253432, 2502641, 5005282, 10010564, 20021128]

約数ペア:

[(1, 20021128), (2, 10010564), (4, 5005282), (8, 2502641), (79, 253432), (158, 126716), (316, 63358), (401, 49928), (632, 31679), (802, 24964), (1604, 12482), (3208, 6241)]