280052080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4133}}^1$

素因数の和:4175

約数の個数: 120

約数和(自身を含む): 818135136

約数和(自身を除く): 538083056

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 176, 220, 242, 280, 308, 385, 440, 484, 560, 605, 616, 770, 847, 880, 968, 1210, 1232, 1540, 1694, 1936, 2420, 3080, 3388, 4133, 4235, 4840, 6160, 6776, 8266, 8470, 9680, 13552, 16532, 16940, 20665, 28931, 33064, 33880, 41330, 45463, 57862, 66128, 67760, 82660, 90926, 115724, 144655, 165320, 181852, 227315, 231448, 289310, 318241, 330640, 363704, 454630, 462896, 500093, 578620, 636482, 727408, 909260, 1000186, 1157240, 1272964, 1591205, 1818520, 2000372, 2314480, 2500465, 2545928, 3182410, 3500651, 3637040, 4000744, 5000930, 5091856, 6364820, 7001302, 8001488, 10001860, 12729640, 14002604, 17503255, 20003720, 25459280, 28005208, 35006510, 40007440, 56010416, 70013020, 140026040, 280052080]

約数ペア:

[(1, 280052080), (2, 140026040), (4, 70013020), (5, 56010416), (7, 40007440), (8, 35006510), (10, 28005208), (11, 25459280), (14, 20003720), (16, 17503255), (20, 14002604), (22, 12729640), (28, 10001860), (35, 8001488), (40, 7001302), (44, 6364820), (55, 5091856), (56, 5000930), (70, 4000744), (77, 3637040), (80, 3500651), (88, 3182410), (110, 2545928), (112, 2500465), (121, 2314480), (140, 2000372), (154, 1818520), (176, 1591205), (220, 1272964), (242, 1157240), (280, 1000186), (308, 909260), (385, 727408), (440, 636482), (484, 578620), (560, 500093), (605, 462896), (616, 454630), (770, 363704), (847, 330640), (880, 318241), (968, 289310), (1210, 231448), (1232, 227315), (1540, 181852), (1694, 165320), (1936, 144655), (2420, 115724), (3080, 90926), (3388, 82660), (4133, 67760), (4235, 66128), (4840, 57862), (6160, 45463), (6776, 41330), (8266, 33880), (8470, 33064), (9680, 28931), (13552, 20665), (16532, 16940)]