7320220

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{641}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 15423408

約数和(自身を除く): 8103188

約数列:

[1, 2, 4, 5, 10, 20, 571, 641, 1142, 1282, 2284, 2564, 2855, 3205, 5710, 6410, 11420, 12820, 366011, 732022, 1464044, 1830055, 3660110, 7320220]

約数ペア:

[(1, 7320220), (2, 3660110), (4, 1830055), (5, 1464044), (10, 732022), (20, 366011), (571, 12820), (641, 11420), (1142, 6410), (1282, 5710), (2284, 3205), (2564, 2855)]