20690075

素因数分解:

$5^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{619}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 29521920

約数和(自身を除く): 8831845

約数列:

[1, 5, 7, 25, 35, 175, 191, 619, 955, 1337, 3095, 4333, 4775, 6685, 15475, 21665, 33425, 108325, 118229, 591145, 827603, 2955725, 4138015, 20690075]

約数ペア:

[(1, 20690075), (5, 4138015), (7, 2955725), (25, 827603), (35, 591145), (175, 118229), (191, 108325), (619, 33425), (955, 21665), (1337, 15475), (3095, 6685), (4333, 4775)]