2019901220

素因数分解:

$2^2\times 5^1\times {\mathrm{2113}}^1\times {\mathrm{47797}}^1$

素因数の和:49919

約数の個数: 24

約数和(自身を含む): 4243888824

約数和(自身を除く): 2223987604

約数列:

[1, 2, 4, 5, 10, 20, 2113, 4226, 8452, 10565, 21130, 42260, 47797, 95594, 191188, 238985, 477970, 955940, 100995061, 201990122, 403980244, 504975305, 1009950610, 2019901220]

約数ペア:

[(1, 2019901220), (2, 1009950610), (4, 504975305), (5, 403980244), (10, 201990122), (20, 100995061), (2113, 955940), (4226, 477970), (8452, 238985), (10565, 191188), (21130, 95594), (42260, 47797)]