31199980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{222857}}^1$

素因数の和:222873

約数の個数: 24

約数和(自身を含む): 74880288

約数和(自身を除く): 43680308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 222857, 445714, 891428, 1114285, 1559999, 2228570, 3119998, 4457140, 6239996, 7799995, 15599990, 31199980]

約数ペア:

[(1, 31199980), (2, 15599990), (4, 7799995), (5, 6239996), (7, 4457140), (10, 3119998), (14, 2228570), (20, 1559999), (28, 1114285), (35, 891428), (70, 445714), (140, 222857)]