207078520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2389}}^1$

素因数の和:2608

約数の個数: 64

約数和(自身を含む): 511077600

約数和(自身を除く): 303999080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 788, 985, 1576, 1970, 2167, 2389, 3940, 4334, 4778, 7880, 8668, 9556, 10835, 11945, 17336, 19112, 21670, 23890, 26279, 43340, 47780, 52558, 86680, 95560, 105116, 131395, 210232, 262790, 470633, 525580, 941266, 1051160, 1882532, 2353165, 3765064, 4706330, 5176963, 9412660, 10353926, 18825320, 20707852, 25884815, 41415704, 51769630, 103539260, 207078520]

約数ペア:

[(1, 207078520), (2, 103539260), (4, 51769630), (5, 41415704), (8, 25884815), (10, 20707852), (11, 18825320), (20, 10353926), (22, 9412660), (40, 5176963), (44, 4706330), (55, 3765064), (88, 2353165), (110, 1882532), (197, 1051160), (220, 941266), (394, 525580), (440, 470633), (788, 262790), (985, 210232), (1576, 131395), (1970, 105116), (2167, 95560), (2389, 86680), (3940, 52558), (4334, 47780), (4778, 43340), (7880, 26279), (8668, 23890), (9556, 21670), (10835, 19112), (11945, 17336)]