2019980440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{929}}^1\times {\mathrm{2861}}^1$

素因数の和:3820

約数の個数: 64

約数和(自身を含む): 4790988000

約数和(自身を除く): 2771007560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 929, 1858, 2861, 3716, 4645, 5722, 7432, 9290, 11444, 14305, 17651, 18580, 22888, 28610, 35302, 37160, 54359, 57220, 70604, 88255, 108718, 114440, 141208, 176510, 217436, 271795, 353020, 434872, 543590, 706040, 1087180, 2174360, 2657869, 5315738, 10631476, 13289345, 21262952, 26578690, 50499511, 53157380, 100999022, 106314760, 201998044, 252497555, 403996088, 504995110, 1009990220, 2019980440]

約数ペア:

[(1, 2019980440), (2, 1009990220), (4, 504995110), (5, 403996088), (8, 252497555), (10, 201998044), (19, 106314760), (20, 100999022), (38, 53157380), (40, 50499511), (76, 26578690), (95, 21262952), (152, 13289345), (190, 10631476), (380, 5315738), (760, 2657869), (929, 2174360), (1858, 1087180), (2861, 706040), (3716, 543590), (4645, 434872), (5722, 353020), (7432, 271795), (9290, 217436), (11444, 176510), (14305, 141208), (17651, 114440), (18580, 108718), (22888, 88255), (28610, 70604), (35302, 57220), (37160, 54359)]