81683820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453799}}^1$

素因数の和:453814

約数の個数: 36

約数和(自身を含む): 247774800

約数和(自身を除く): 166090980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453799, 907598, 1361397, 1815196, 2268995, 2722794, 4084191, 4537990, 5445588, 6806985, 8168382, 9075980, 13613970, 16336764, 20420955, 27227940, 40841910, 81683820]

約数ペア:

[(1, 81683820), (2, 40841910), (3, 27227940), (4, 20420955), (5, 16336764), (6, 13613970), (9, 9075980), (10, 8168382), (12, 6806985), (15, 5445588), (18, 4537990), (20, 4084191), (30, 2722794), (36, 2268995), (45, 1815196), (60, 1361397), (90, 907598), (180, 453799)]