25397240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 62868960

約数和(自身を除く): 37471720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 293, 394, 440, 586, 788, 985, 1172, 1465, 1576, 1970, 2167, 2344, 2930, 3223, 3940, 4334, 5860, 6446, 7880, 8668, 10835, 11720, 12892, 16115, 17336, 21670, 25784, 32230, 43340, 57721, 64460, 86680, 115442, 128920, 230884, 288605, 461768, 577210, 634931, 1154420, 1269862, 2308840, 2539724, 3174655, 5079448, 6349310, 12698620, 25397240]

約数ペア:

[(1, 25397240), (2, 12698620), (4, 6349310), (5, 5079448), (8, 3174655), (10, 2539724), (11, 2308840), (20, 1269862), (22, 1154420), (40, 634931), (44, 577210), (55, 461768), (88, 288605), (110, 230884), (197, 128920), (220, 115442), (293, 86680), (394, 64460), (440, 57721), (586, 43340), (788, 32230), (985, 25784), (1172, 21670), (1465, 17336), (1576, 16115), (1970, 12892), (2167, 11720), (2344, 10835), (2930, 8668), (3223, 7880), (3940, 6446), (4334, 5860)]