18889750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{6869}}^1$

素因数の和:6897

約数の個数: 32

約数和(自身を含む): 38581920

約数和(自身を除く): 19692170

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 6869, 13738, 34345, 68690, 75559, 151118, 171725, 343450, 377795, 755590, 858625, 1717250, 1888975, 3777950, 9444875, 18889750]

約数ペア:

[(1, 18889750), (2, 9444875), (5, 3777950), (10, 1888975), (11, 1717250), (22, 858625), (25, 755590), (50, 377795), (55, 343450), (110, 171725), (125, 151118), (250, 75559), (275, 68690), (550, 34345), (1375, 13738), (2750, 6869)]