205213456

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 467970048

約数和(自身を除く): 262756592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 181, 191, 212, 362, 371, 382, 424, 724, 742, 764, 848, 1267, 1337, 1448, 1484, 1528, 2534, 2674, 2896, 2968, 3056, 5068, 5348, 5936, 9593, 10123, 10136, 10696, 19186, 20246, 20272, 21392, 34571, 38372, 40492, 67151, 69142, 70861, 76744, 80984, 134302, 138284, 141722, 153488, 161968, 241997, 268604, 276568, 283444, 483994, 537208, 553136, 566888, 967988, 1074416, 1133776, 1832263, 1935976, 3664526, 3871952, 7329052, 12825841, 14658104, 25651682, 29316208, 51303364, 102606728, 205213456]

約数ペア:

[(1, 205213456), (2, 102606728), (4, 51303364), (7, 29316208), (8, 25651682), (14, 14658104), (16, 12825841), (28, 7329052), (53, 3871952), (56, 3664526), (106, 1935976), (112, 1832263), (181, 1133776), (191, 1074416), (212, 967988), (362, 566888), (371, 553136), (382, 537208), (424, 483994), (724, 283444), (742, 276568), (764, 268604), (848, 241997), (1267, 161968), (1337, 153488), (1448, 141722), (1484, 138284), (1528, 134302), (2534, 80984), (2674, 76744), (2896, 70861), (2968, 69142), (3056, 67151), (5068, 40492), (5348, 38372), (5936, 34571), (9593, 21392), (10123, 20272), (10136, 20246), (10696, 19186)]