213059440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1229}}^1$

素因数の和:1450

約数の個数: 80

約数和(自身を含む): 543581280

約数和(自身を除く): 330521840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 788, 880, 985, 1229, 1576, 1970, 2167, 2458, 3152, 3940, 4334, 4916, 6145, 7880, 8668, 9832, 10835, 12290, 13519, 15760, 17336, 19664, 21670, 24580, 27038, 34672, 43340, 49160, 54076, 67595, 86680, 98320, 108152, 135190, 173360, 216304, 242113, 270380, 484226, 540760, 968452, 1081520, 1210565, 1936904, 2421130, 2663243, 3873808, 4842260, 5326486, 9684520, 10652972, 13316215, 19369040, 21305944, 26632430, 42611888, 53264860, 106529720, 213059440]

約数ペア:

[(1, 213059440), (2, 106529720), (4, 53264860), (5, 42611888), (8, 26632430), (10, 21305944), (11, 19369040), (16, 13316215), (20, 10652972), (22, 9684520), (40, 5326486), (44, 4842260), (55, 3873808), (80, 2663243), (88, 2421130), (110, 1936904), (176, 1210565), (197, 1081520), (220, 968452), (394, 540760), (440, 484226), (788, 270380), (880, 242113), (985, 216304), (1229, 173360), (1576, 135190), (1970, 108152), (2167, 98320), (2458, 86680), (3152, 67595), (3940, 54076), (4334, 49160), (4916, 43340), (6145, 34672), (7880, 27038), (8668, 24580), (9832, 21670), (10835, 19664), (12290, 17336), (13519, 15760)]