9940990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52321}}^1$

素因数の和:52347

約数の個数: 16

約数和(自身を含む): 18835920

約数和(自身を除く): 8894930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 52321, 104642, 261605, 523210, 994099, 1988198, 4970495, 9940990]

約数ペア:

[(1, 9940990), (2, 4970495), (5, 1988198), (10, 994099), (19, 523210), (38, 261605), (95, 104642), (190, 52321)]