20409860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60029}}^1$

素因数の和:60055

約数の個数: 24

約数和(自身を含む): 45382680

約数和(自身を除く): 24972820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 60029, 120058, 240116, 300145, 600290, 1020493, 1200580, 2040986, 4081972, 5102465, 10204930, 20409860]

約数ペア:

[(1, 20409860), (2, 10204930), (4, 5102465), (5, 4081972), (10, 2040986), (17, 1200580), (20, 1020493), (34, 600290), (68, 300145), (85, 240116), (170, 120058), (340, 60029)]