66438500

素因数分解:

$2^2\times 5^3\times {\mathrm{89}}^1\times {\mathrm{1493}}^1$

素因数の和:1601

約数の個数: 48

約数和(自身を含む): 146830320

約数和(自身を除く): 80391820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 125, 178, 250, 356, 445, 500, 890, 1493, 1780, 2225, 2986, 4450, 5972, 7465, 8900, 11125, 14930, 22250, 29860, 37325, 44500, 74650, 132877, 149300, 186625, 265754, 373250, 531508, 664385, 746500, 1328770, 2657540, 3321925, 6643850, 13287700, 16609625, 33219250, 66438500]

約数ペア:

[(1, 66438500), (2, 33219250), (4, 16609625), (5, 13287700), (10, 6643850), (20, 3321925), (25, 2657540), (50, 1328770), (89, 746500), (100, 664385), (125, 531508), (178, 373250), (250, 265754), (356, 186625), (445, 149300), (500, 132877), (890, 74650), (1493, 44500), (1780, 37325), (2225, 29860), (2986, 22250), (4450, 14930), (5972, 11125), (7465, 8900)]