204464140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{237749}}^1$

素因数の和:237801

約数の個数: 24

約数和(自身を含む): 439362000

約数和(自身を除く): 234897860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 237749, 475498, 950996, 1188745, 2377490, 4754980, 10223207, 20446414, 40892828, 51116035, 102232070, 204464140]

約数ペア:

[(1, 204464140), (2, 102232070), (4, 51116035), (5, 40892828), (10, 20446414), (20, 10223207), (43, 4754980), (86, 2377490), (172, 1188745), (215, 950996), (430, 475498), (860, 237749)]