27217520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 69825888

約数和(自身を除く): 42608368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 157, 176, 197, 220, 314, 394, 440, 628, 785, 788, 880, 985, 1256, 1570, 1576, 1727, 1970, 2167, 2512, 3140, 3152, 3454, 3940, 4334, 6280, 6908, 7880, 8635, 8668, 10835, 12560, 13816, 15760, 17270, 17336, 21670, 27632, 30929, 34540, 34672, 43340, 61858, 69080, 86680, 123716, 138160, 154645, 173360, 247432, 309290, 340219, 494864, 618580, 680438, 1237160, 1360876, 1701095, 2474320, 2721752, 3402190, 5443504, 6804380, 13608760, 27217520]

約数ペア:

[(1, 27217520), (2, 13608760), (4, 6804380), (5, 5443504), (8, 3402190), (10, 2721752), (11, 2474320), (16, 1701095), (20, 1360876), (22, 1237160), (40, 680438), (44, 618580), (55, 494864), (80, 340219), (88, 309290), (110, 247432), (157, 173360), (176, 154645), (197, 138160), (220, 123716), (314, 86680), (394, 69080), (440, 61858), (628, 43340), (785, 34672), (788, 34540), (880, 30929), (985, 27632), (1256, 21670), (1570, 17336), (1576, 17270), (1727, 15760), (1970, 13816), (2167, 12560), (2512, 10835), (3140, 8668), (3152, 8635), (3454, 7880), (3940, 6908), (4334, 6280)]