220188920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1223}}^1$

素因数の和:1884

約数の個数: 64

約数和(自身を含む): 567544320

約数和(自身を除く): 347355400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 643, 1223, 1286, 2446, 2572, 3215, 4501, 4892, 5144, 6115, 6430, 8561, 9002, 9784, 12230, 12860, 17122, 18004, 22505, 24460, 25720, 34244, 36008, 42805, 45010, 48920, 68488, 85610, 90020, 171220, 180040, 342440, 786389, 1572778, 3145556, 3931945, 5504723, 6291112, 7863890, 11009446, 15727780, 22018892, 27523615, 31455560, 44037784, 55047230, 110094460, 220188920]

約数ペア:

[(1, 220188920), (2, 110094460), (4, 55047230), (5, 44037784), (7, 31455560), (8, 27523615), (10, 22018892), (14, 15727780), (20, 11009446), (28, 7863890), (35, 6291112), (40, 5504723), (56, 3931945), (70, 3145556), (140, 1572778), (280, 786389), (643, 342440), (1223, 180040), (1286, 171220), (2446, 90020), (2572, 85610), (3215, 68488), (4501, 48920), (4892, 45010), (5144, 42805), (6115, 36008), (6430, 34244), (8561, 25720), (9002, 24460), (9784, 22505), (12230, 18004), (12860, 17122)]