20994080

素因数分解:

$2^5\times 5^1\times {\mathrm{131213}}^1$

素因数の和:131228

約数の個数: 24

約数和(自身を含む): 49598892

約数和(自身を除く): 28604812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131213, 262426, 524852, 656065, 1049704, 1312130, 2099408, 2624260, 4198816, 5248520, 10497040, 20994080]

約数ペア:

[(1, 20994080), (2, 10497040), (4, 5248520), (5, 4198816), (8, 2624260), (10, 2099408), (16, 1312130), (20, 1049704), (32, 656065), (40, 524852), (80, 262426), (160, 131213)]