20610420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{797}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 57915648

約数和(自身を除く): 37305228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 797, 862, 1293, 1594, 1724, 2155, 2391, 2586, 3188, 3985, 4310, 4782, 5172, 6465, 7970, 8620, 9564, 11955, 12930, 15940, 23910, 25860, 47820, 343507, 687014, 1030521, 1374028, 1717535, 2061042, 3435070, 4122084, 5152605, 6870140, 10305210, 20610420]

約数ペア:

[(1, 20610420), (2, 10305210), (3, 6870140), (4, 5152605), (5, 4122084), (6, 3435070), (10, 2061042), (12, 1717535), (15, 1374028), (20, 1030521), (30, 687014), (60, 343507), (431, 47820), (797, 25860), (862, 23910), (1293, 15940), (1594, 12930), (1724, 11955), (2155, 9564), (2391, 8620), (2586, 7970), (3188, 6465), (3985, 5172), (4310, 4782)]