1290520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 3628800

約数和(自身を除く): 2338280

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, 419, 440, 616, 770, 838, 1540, 1676, 2095, 2933, 3080, 3352, 4190, 4609, 5866, 8380, 9218, 11732, 14665, 16760, 18436, 23045, 23464, 29330, 32263, 36872, 46090, 58660, 64526, 92180, 117320, 129052, 161315, 184360, 258104, 322630, 645260, 1290520]

約数ペア:

[(1, 1290520), (2, 645260), (4, 322630), (5, 258104), (7, 184360), (8, 161315), (10, 129052), (11, 117320), (14, 92180), (20, 64526), (22, 58660), (28, 46090), (35, 36872), (40, 32263), (44, 29330), (55, 23464), (56, 23045), (70, 18436), (77, 16760), (88, 14665), (110, 11732), (140, 9218), (154, 8380), (220, 5866), (280, 4609), (308, 4190), (385, 3352), (419, 3080), (440, 2933), (616, 2095), (770, 1676), (838, 1540)]