20492080220

素因数分解:

$2^2\times 5^1\times {\mathrm{45439}}^1\times {\mathrm{22549}}^1$

素因数の和:67997

約数の個数: 24

約数和(自身を含む): 43036224000

約数和(自身を除く): 22544143780

約数列:

[1, 2, 4, 5, 10, 20, 22549, 45098, 45439, 90196, 90878, 112745, 181756, 225490, 227195, 450980, 454390, 908780, 1024604011, 2049208022, 4098416044, 5123020055, 10246040110, 20492080220]

約数ペア:

[(1, 20492080220), (2, 10246040110), (4, 5123020055), (5, 4098416044), (10, 2049208022), (20, 1024604011), (22549, 908780), (45098, 454390), (45439, 450980), (90196, 227195), (90878, 225490), (112745, 181756)]