1259720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 3542400

約数和(自身を除く): 2282680

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, 409, 440, 616, 770, 818, 1540, 1636, 2045, 2863, 3080, 3272, 4090, 4499, 5726, 8180, 8998, 11452, 14315, 16360, 17996, 22495, 22904, 28630, 31493, 35992, 44990, 57260, 62986, 89980, 114520, 125972, 157465, 179960, 251944, 314930, 629860, 1259720]

約数ペア:

[(1, 1259720), (2, 629860), (4, 314930), (5, 251944), (7, 179960), (8, 157465), (10, 125972), (11, 114520), (14, 89980), (20, 62986), (22, 57260), (28, 44990), (35, 35992), (40, 31493), (44, 28630), (55, 22904), (56, 22495), (70, 17996), (77, 16360), (88, 14315), (110, 11452), (140, 8998), (154, 8180), (220, 5726), (280, 4499), (308, 4090), (385, 3272), (409, 3080), (440, 2863), (616, 2045), (770, 1636), (818, 1540)]