7964020

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{811}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 16779168

約数和(自身を除く): 8815148

約数列:

[1, 2, 4, 5, 10, 20, 491, 811, 982, 1622, 1964, 2455, 3244, 4055, 4910, 8110, 9820, 16220, 398201, 796402, 1592804, 1991005, 3982010, 7964020]

約数ペア:

[(1, 7964020), (2, 3982010), (4, 1991005), (5, 1592804), (10, 796402), (20, 398201), (491, 16220), (811, 9820), (982, 8110), (1622, 4910), (1964, 4055), (2455, 3244)]