20702120

素因数分解:

$2^3\times 5^1\times {\mathrm{517553}}^1$

素因数の和:517564

約数の個数: 16

約数和(自身を含む): 46579860

約数和(自身を除く): 25877740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517553, 1035106, 2070212, 2587765, 4140424, 5175530, 10351060, 20702120]

約数ペア:

[(1, 20702120), (2, 10351060), (4, 5175530), (5, 4140424), (8, 2587765), (10, 2070212), (20, 1035106), (40, 517553)]