4219780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2089}}^1$

素因数の和:2199

約数の個数: 24

約数和(自身を含む): 8953560

約数和(自身を除く): 4733780

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 2089, 4178, 8356, 10445, 20890, 41780, 210989, 421978, 843956, 1054945, 2109890, 4219780]

約数ペア:

[(1, 4219780), (2, 2109890), (4, 1054945), (5, 843956), (10, 421978), (20, 210989), (101, 41780), (202, 20890), (404, 10445), (505, 8356), (1010, 4178), (2020, 2089)]