775492040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{929}}^1$

素因数の和:1490

約数の個数: 64

約数和(自身を含む): 1792854000

約数和(自身を除く): 1017361960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 509, 820, 929, 1018, 1640, 1858, 2036, 2545, 3716, 4072, 4645, 5090, 7432, 9290, 10180, 18580, 20360, 20869, 37160, 38089, 41738, 76178, 83476, 104345, 152356, 166952, 190445, 208690, 304712, 380890, 417380, 472861, 761780, 834760, 945722, 1523560, 1891444, 2364305, 3782888, 4728610, 9457220, 18914440, 19387301, 38774602, 77549204, 96936505, 155098408, 193873010, 387746020, 775492040]

約数ペア:

[(1, 775492040), (2, 387746020), (4, 193873010), (5, 155098408), (8, 96936505), (10, 77549204), (20, 38774602), (40, 19387301), (41, 18914440), (82, 9457220), (164, 4728610), (205, 3782888), (328, 2364305), (410, 1891444), (509, 1523560), (820, 945722), (929, 834760), (1018, 761780), (1640, 472861), (1858, 417380), (2036, 380890), (2545, 304712), (3716, 208690), (4072, 190445), (4645, 166952), (5090, 152356), (7432, 104345), (9290, 83476), (10180, 76178), (18580, 41738), (20360, 38089), (20869, 37160)]