257940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1433}}^1$

素因数の和:1448

約数の個数: 36

約数和(自身を含む): 782964

約数和(自身を除く): 525024

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1433, 2866, 4299, 5732, 7165, 8598, 12897, 14330, 17196, 21495, 25794, 28660, 42990, 51588, 64485, 85980, 128970, 257940]

約数ペア:

[(1, 257940), (2, 128970), (3, 85980), (4, 64485), (5, 51588), (6, 42990), (9, 28660), (10, 25794), (12, 21495), (15, 17196), (18, 14330), (20, 12897), (30, 8598), (36, 7165), (45, 5732), (60, 4299), (90, 2866), (180, 1433)]