20760760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12659}}^1$

素因数の和:12711

約数の個数: 32

約数和(自身を含む): 47854800

約数和(自身を除く): 27094040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12659, 25318, 50636, 63295, 101272, 126590, 253180, 506360, 519019, 1038038, 2076076, 2595095, 4152152, 5190190, 10380380, 20760760]

約数ペア:

[(1, 20760760), (2, 10380380), (4, 5190190), (5, 4152152), (8, 2595095), (10, 2076076), (20, 1038038), (40, 519019), (41, 506360), (82, 253180), (164, 126590), (205, 101272), (328, 63295), (410, 50636), (820, 25318), (1640, 12659)]