20102855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3469}}^1$

素因数の和:3554

約数の個数: 16

約数和(自身を含む): 25816800

約数和(自身を除く): 5713945

約数列:

[1, 5, 19, 61, 95, 305, 1159, 3469, 5795, 17345, 65911, 211609, 329555, 1058045, 4020571, 20102855]

約数ペア:

[(1, 20102855), (5, 4020571), (19, 1058045), (61, 329555), (95, 211609), (305, 65911), (1159, 17345), (3469, 5795)]