19404860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13291}}^1$

素因数の和:13373

約数の個数: 24

約数和(自身を含む): 41311536

約数和(自身を除く): 21906676

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13291, 26582, 53164, 66455, 132910, 265820, 970243, 1940486, 3880972, 4851215, 9702430, 19404860]

約数ペア:

[(1, 19404860), (2, 9702430), (4, 4851215), (5, 3880972), (10, 1940486), (20, 970243), (73, 265820), (146, 132910), (292, 66455), (365, 53164), (730, 26582), (1460, 13291)]