419492020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{216233}}^1$

素因数の和:216339

約数の個数: 24

約数和(自身を含む): 890019144

約数和(自身を除く): 470527124

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 216233, 432466, 864932, 1081165, 2162330, 4324660, 20974601, 41949202, 83898404, 104873005, 209746010, 419492020]

約数ペア:

[(1, 419492020), (2, 209746010), (4, 104873005), (5, 83898404), (10, 41949202), (20, 20974601), (97, 4324660), (194, 2162330), (388, 1081165), (485, 864932), (970, 432466), (1940, 216233)]