91720190

素因数分解:

$2^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{9001}}^1$

素因数の和:10027

約数の個数: 16

約数和(自身を含む): 165276720

約数和(自身を除く): 73556530

約数列:

[1, 2, 5, 10, 1019, 2038, 5095, 9001, 10190, 18002, 45005, 90010, 9172019, 18344038, 45860095, 91720190]

約数ペア:

[(1, 91720190), (2, 45860095), (5, 18344038), (10, 9172019), (1019, 90010), (2038, 45005), (5095, 18002), (9001, 10190)]