28951120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 74245248

約数和(自身を除く): 45294128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 167, 176, 197, 220, 334, 394, 440, 668, 788, 835, 880, 985, 1336, 1576, 1670, 1837, 1970, 2167, 2672, 3152, 3340, 3674, 3940, 4334, 6680, 7348, 7880, 8668, 9185, 10835, 13360, 14696, 15760, 17336, 18370, 21670, 29392, 32899, 34672, 36740, 43340, 65798, 73480, 86680, 131596, 146960, 164495, 173360, 263192, 328990, 361889, 526384, 657980, 723778, 1315960, 1447556, 1809445, 2631920, 2895112, 3618890, 5790224, 7237780, 14475560, 28951120]

約数ペア:

[(1, 28951120), (2, 14475560), (4, 7237780), (5, 5790224), (8, 3618890), (10, 2895112), (11, 2631920), (16, 1809445), (20, 1447556), (22, 1315960), (40, 723778), (44, 657980), (55, 526384), (80, 361889), (88, 328990), (110, 263192), (167, 173360), (176, 164495), (197, 146960), (220, 131596), (334, 86680), (394, 73480), (440, 65798), (668, 43340), (788, 36740), (835, 34672), (880, 32899), (985, 29392), (1336, 21670), (1576, 18370), (1670, 17336), (1837, 15760), (1970, 14696), (2167, 13360), (2672, 10835), (3152, 9185), (3340, 8668), (3674, 7880), (3940, 7348), (4334, 6680)]