81000090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{900001}}^1$

素因数の和:900014

約数の個数: 24

約数和(自身を含む): 210600468

約数和(自身を除く): 129600378

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 900001, 1800002, 2700003, 4500005, 5400006, 8100009, 9000010, 13500015, 16200018, 27000030, 40500045, 81000090]

約数ペア:

[(1, 81000090), (2, 40500045), (3, 27000030), (5, 16200018), (6, 13500015), (9, 9000010), (10, 8100009), (15, 5400006), (18, 4500005), (30, 2700003), (45, 1800002), (90, 900001)]