20808500

素因数分解:

$2^2\times 5^3\times {\mathrm{41617}}^1$

素因数の和:41636

約数の個数: 24

約数和(自身を含む): 45446856

約数和(自身を除く): 24638356

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 41617, 83234, 166468, 208085, 416170, 832340, 1040425, 2080850, 4161700, 5202125, 10404250, 20808500]

約数ペア:

[(1, 20808500), (2, 10404250), (4, 5202125), (5, 4161700), (10, 2080850), (20, 1040425), (25, 832340), (50, 416170), (100, 208085), (125, 166468), (250, 83234), (500, 41617)]