179997140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{209299}}^1$

素因数の和:209351

約数の個数: 24

約数和(自身を含む): 386786400

約数和(自身を除く): 206789260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 209299, 418598, 837196, 1046495, 2092990, 4185980, 8999857, 17999714, 35999428, 44999285, 89998570, 179997140]

約数ペア:

[(1, 179997140), (2, 89998570), (4, 44999285), (5, 35999428), (10, 17999714), (20, 8999857), (43, 4185980), (86, 2092990), (172, 1046495), (215, 837196), (430, 418598), (860, 209299)]