20805850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32009}}^1$

素因数の和:32034

約数の個数: 24

約数和(自身を含む): 41677020

約数和(自身を除く): 20871170

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32009, 64018, 160045, 320090, 416117, 800225, 832234, 1600450, 2080585, 4161170, 10402925, 20805850]

約数ペア:

[(1, 20805850), (2, 10402925), (5, 4161170), (10, 2080585), (13, 1600450), (25, 832234), (26, 800225), (50, 416117), (65, 320090), (130, 160045), (325, 64018), (650, 32009)]