306777980

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{43951}}^1$

素因数の和:44309

約数の個数: 24

約数和(自身を含む): 646094400

約数和(自身を除く): 339316420

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 43951, 87902, 175804, 219755, 439510, 879020, 15338899, 30677798, 61355596, 76694495, 153388990, 306777980]

約数ペア:

[(1, 306777980), (2, 153388990), (4, 76694495), (5, 61355596), (10, 30677798), (20, 15338899), (349, 879020), (698, 439510), (1396, 219755), (1745, 175804), (3490, 87902), (6980, 43951)]