20905130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2341}}^1$

素因数の和:2414

約数の個数: 32

約数和(自身を含む): 40469760

約数和(自身を除く): 19564630

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 2341, 4465, 4682, 8930, 11705, 23410, 44479, 88958, 110027, 220054, 222395, 444790, 550135, 1100270, 2090513, 4181026, 10452565, 20905130]

約数ペア:

[(1, 20905130), (2, 10452565), (5, 4181026), (10, 2090513), (19, 1100270), (38, 550135), (47, 444790), (94, 222395), (95, 220054), (190, 110027), (235, 88958), (470, 44479), (893, 23410), (1786, 11705), (2341, 8930), (4465, 4682)]