28777760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:306

約数の個数: 96

約数和(自身を含む): 75442752

約数和(自身を除く): 46664992

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 83, 88, 110, 160, 166, 176, 197, 220, 332, 352, 394, 415, 440, 664, 788, 830, 880, 913, 985, 1328, 1576, 1660, 1760, 1826, 1970, 2167, 2656, 3152, 3320, 3652, 3940, 4334, 4565, 6304, 6640, 7304, 7880, 8668, 9130, 10835, 13280, 14608, 15760, 16351, 17336, 18260, 21670, 29216, 31520, 32702, 34672, 36520, 43340, 65404, 69344, 73040, 81755, 86680, 130808, 146080, 163510, 173360, 179861, 261616, 327020, 346720, 359722, 523232, 654040, 719444, 899305, 1308080, 1438888, 1798610, 2616160, 2877776, 3597220, 5755552, 7194440, 14388880, 28777760]

約数ペア:

[(1, 28777760), (2, 14388880), (4, 7194440), (5, 5755552), (8, 3597220), (10, 2877776), (11, 2616160), (16, 1798610), (20, 1438888), (22, 1308080), (32, 899305), (40, 719444), (44, 654040), (55, 523232), (80, 359722), (83, 346720), (88, 327020), (110, 261616), (160, 179861), (166, 173360), (176, 163510), (197, 146080), (220, 130808), (332, 86680), (352, 81755), (394, 73040), (415, 69344), (440, 65404), (664, 43340), (788, 36520), (830, 34672), (880, 32702), (913, 31520), (985, 29216), (1328, 21670), (1576, 18260), (1660, 17336), (1760, 16351), (1826, 15760), (1970, 14608), (2167, 13280), (2656, 10835), (3152, 9130), (3320, 8668), (3652, 7880), (3940, 7304), (4334, 6640), (4565, 6304)]