66394520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 159213600

約数和(自身を除く): 92819080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 251, 340, 389, 502, 680, 778, 1004, 1255, 1556, 1945, 2008, 2510, 3112, 3890, 4267, 5020, 6613, 7780, 8534, 10040, 13226, 15560, 17068, 21335, 26452, 33065, 34136, 42670, 52904, 66130, 85340, 97639, 132260, 170680, 195278, 264520, 390556, 488195, 781112, 976390, 1659863, 1952780, 3319726, 3905560, 6639452, 8299315, 13278904, 16598630, 33197260, 66394520]

約数ペア:

[(1, 66394520), (2, 33197260), (4, 16598630), (5, 13278904), (8, 8299315), (10, 6639452), (17, 3905560), (20, 3319726), (34, 1952780), (40, 1659863), (68, 976390), (85, 781112), (136, 488195), (170, 390556), (251, 264520), (340, 195278), (389, 170680), (502, 132260), (680, 97639), (778, 85340), (1004, 66130), (1255, 52904), (1556, 42670), (1945, 34136), (2008, 33065), (2510, 26452), (3112, 21335), (3890, 17068), (4267, 15560), (5020, 13226), (6613, 10040), (7780, 8534)]