81107820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450599}}^1$

素因数の和:450614

約数の個数: 36

約数和(自身を含む): 246027600

約数和(自身を除く): 164919780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450599, 901198, 1351797, 1802396, 2252995, 2703594, 4055391, 4505990, 5407188, 6758985, 8110782, 9011980, 13517970, 16221564, 20276955, 27035940, 40553910, 81107820]

約数ペア:

[(1, 81107820), (2, 40553910), (3, 27035940), (4, 20276955), (5, 16221564), (6, 13517970), (9, 9011980), (10, 8110782), (12, 6758985), (15, 5407188), (18, 4505990), (20, 4055391), (30, 2703594), (36, 2252995), (45, 1802396), (60, 1351797), (90, 901198), (180, 450599)]