51278920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16649}}^1$

素因数の和:16678

約数の個数: 64

約数和(自身を含む): 143856000

約数和(自身を除く): 92577080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 16649, 33298, 66596, 83245, 116543, 133192, 166490, 183139, 233086, 332980, 366278, 466172, 582715, 665960, 732556, 915695, 932344, 1165430, 1281973, 1465112, 1831390, 2330860, 2563946, 3662780, 4661720, 5127892, 6409865, 7325560, 10255784, 12819730, 25639460, 51278920]

約数ペア:

[(1, 51278920), (2, 25639460), (4, 12819730), (5, 10255784), (7, 7325560), (8, 6409865), (10, 5127892), (11, 4661720), (14, 3662780), (20, 2563946), (22, 2330860), (28, 1831390), (35, 1465112), (40, 1281973), (44, 1165430), (55, 932344), (56, 915695), (70, 732556), (77, 665960), (88, 582715), (110, 466172), (140, 366278), (154, 332980), (220, 233086), (280, 183139), (308, 166490), (385, 133192), (440, 116543), (616, 83245), (770, 66596), (1540, 33298), (3080, 16649)]