201391880

素因数分解:

$2^3\times 5^1\times {\mathrm{5034797}}^1$

素因数の和:5034808

約数の個数: 16

約数和(自身を含む): 453131820

約数和(自身を除く): 251739940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5034797, 10069594, 20139188, 25173985, 40278376, 50347970, 100695940, 201391880]

約数ペア:

[(1, 201391880), (2, 100695940), (4, 50347970), (5, 40278376), (8, 25173985), (10, 20139188), (20, 10069594), (40, 5034797)]