89450980

素因数分解:

$2^2\times 5^1\times {\mathrm{2089}}^1\times {\mathrm{2141}}^1$

素因数の和:4239

約数の個数: 24

約数和(自身を含む): 188024760

約数和(自身を除く): 98573780

約数列:

[1, 2, 4, 5, 10, 20, 2089, 2141, 4178, 4282, 8356, 8564, 10445, 10705, 20890, 21410, 41780, 42820, 4472549, 8945098, 17890196, 22362745, 44725490, 89450980]

約数ペア:

[(1, 89450980), (2, 44725490), (4, 22362745), (5, 17890196), (10, 8945098), (20, 4472549), (2089, 42820), (2141, 41780), (4178, 21410), (4282, 20890), (8356, 10705), (8564, 10445)]