1994500

素因数分解:

$2^2\times 5^3\times {\mathrm{3989}}^1$

素因数の和:4008

約数の個数: 24

約数和(自身を含む): 4357080

約数和(自身を除く): 2362580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 3989, 7978, 15956, 19945, 39890, 79780, 99725, 199450, 398900, 498625, 997250, 1994500]

約数ペア:

[(1, 1994500), (2, 997250), (4, 498625), (5, 398900), (10, 199450), (20, 99725), (25, 79780), (50, 39890), (100, 19945), (125, 15956), (250, 7978), (500, 3989)]