42065020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{21683}}^1$

素因数の和:21789

約数の個数: 24

約数和(自身を含む): 89251344

約数和(自身を除く): 47186324

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 21683, 43366, 86732, 108415, 216830, 433660, 2103251, 4206502, 8413004, 10516255, 21032510, 42065020]

約数ペア:

[(1, 42065020), (2, 21032510), (4, 10516255), (5, 8413004), (10, 4206502), (20, 2103251), (97, 433660), (194, 216830), (388, 108415), (485, 86732), (970, 43366), (1940, 21683)]