8090990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9091}}^1$

素因数の和:9187

約数の個数: 16

約数和(自身を含む): 14729040

約数和(自身を除く): 6638050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 9091, 18182, 45455, 90910, 809099, 1618198, 4045495, 8090990]

約数ペア:

[(1, 8090990), (2, 4045495), (5, 1618198), (10, 809099), (89, 90910), (178, 45455), (445, 18182), (890, 9091)]