200065220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{140891}}^1$

素因数の和:140971

約数の個数: 24

約数和(自身を含む): 426057408

約数和(自身を除く): 225992188

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 140891, 281782, 563564, 704455, 1408910, 2817820, 10003261, 20006522, 40013044, 50016305, 100032610, 200065220]

約数ペア:

[(1, 200065220), (2, 100032610), (4, 50016305), (5, 40013044), (10, 20006522), (20, 10003261), (71, 2817820), (142, 1408910), (284, 704455), (355, 563564), (710, 281782), (1420, 140891)]