4381280

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 10478160

約数和(自身を除く): 6096880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 197, 278, 394, 556, 695, 788, 985, 1112, 1390, 1576, 1970, 2224, 2780, 3152, 3940, 4448, 5560, 6304, 7880, 11120, 15760, 22240, 27383, 31520, 54766, 109532, 136915, 219064, 273830, 438128, 547660, 876256, 1095320, 2190640, 4381280]

約数ペア:

[(1, 4381280), (2, 2190640), (4, 1095320), (5, 876256), (8, 547660), (10, 438128), (16, 273830), (20, 219064), (32, 136915), (40, 109532), (80, 54766), (139, 31520), (160, 27383), (197, 22240), (278, 15760), (394, 11120), (556, 7880), (695, 6304), (788, 5560), (985, 4448), (1112, 3940), (1390, 3152), (1576, 2780), (1970, 2224)]