2805280

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 6735960

約数和(自身を除く): 3930680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 197, 356, 394, 445, 712, 788, 890, 985, 1424, 1576, 1780, 1970, 2848, 3152, 3560, 3940, 6304, 7120, 7880, 14240, 15760, 17533, 31520, 35066, 70132, 87665, 140264, 175330, 280528, 350660, 561056, 701320, 1402640, 2805280]

約数ペア:

[(1, 2805280), (2, 1402640), (4, 701320), (5, 561056), (8, 350660), (10, 280528), (16, 175330), (20, 140264), (32, 87665), (40, 70132), (80, 35066), (89, 31520), (160, 17533), (178, 15760), (197, 14240), (356, 7880), (394, 7120), (445, 6304), (712, 3940), (788, 3560), (890, 3152), (985, 2848), (1424, 1970), (1576, 1780)]