8791120880

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{241}}^1\times {\mathrm{2161}}^1$

素因数の和:2626

約数の個数: 80

約数和(自身を含む): 20630980128

約数和(自身を除く): 11839859248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 241, 422, 482, 844, 964, 1055, 1205, 1688, 1928, 2110, 2161, 2410, 3376, 3856, 4220, 4322, 4820, 8440, 8644, 9640, 10805, 16880, 17288, 19280, 21610, 34576, 43220, 50851, 86440, 101702, 172880, 203404, 254255, 406808, 455971, 508510, 520801, 813616, 911942, 1017020, 1041602, 1823884, 2034040, 2083204, 2279855, 2604005, 3647768, 4068080, 4166408, 4559710, 5208010, 7295536, 8332816, 9119420, 10416020, 18238840, 20832040, 36477680, 41664080, 109889011, 219778022, 439556044, 549445055, 879112088, 1098890110, 1758224176, 2197780220, 4395560440, 8791120880]

約数ペア:

[(1, 8791120880), (2, 4395560440), (4, 2197780220), (5, 1758224176), (8, 1098890110), (10, 879112088), (16, 549445055), (20, 439556044), (40, 219778022), (80, 109889011), (211, 41664080), (241, 36477680), (422, 20832040), (482, 18238840), (844, 10416020), (964, 9119420), (1055, 8332816), (1205, 7295536), (1688, 5208010), (1928, 4559710), (2110, 4166408), (2161, 4068080), (2410, 3647768), (3376, 2604005), (3856, 2279855), (4220, 2083204), (4322, 2034040), (4820, 1823884), (8440, 1041602), (8644, 1017020), (9640, 911942), (10805, 813616), (16880, 520801), (17288, 508510), (19280, 455971), (21610, 406808), (34576, 254255), (43220, 203404), (50851, 172880), (86440, 101702)]