20787250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7559}}^1$

素因数の和:7587

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 21669710

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7559, 15118, 37795, 75590, 83149, 166298, 188975, 377950, 415745, 831490, 944875, 1889750, 2078725, 4157450, 10393625, 20787250]

約数ペア:

[(1, 20787250), (2, 10393625), (5, 4157450), (10, 2078725), (11, 1889750), (22, 944875), (25, 831490), (50, 415745), (55, 377950), (110, 188975), (125, 166298), (250, 83149), (275, 75590), (550, 37795), (1375, 15118), (2750, 7559)]