51887560

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3919}}^1$

素因数の和:4261

約数の個数: 32

約数和(自身を含む): 117129600

約数和(自身を除く): 65242040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 3919, 6620, 7838, 13240, 15676, 19595, 31352, 39190, 78380, 156760, 1297189, 2594378, 5188756, 6485945, 10377512, 12971890, 25943780, 51887560]

約数ペア:

[(1, 51887560), (2, 25943780), (4, 12971890), (5, 10377512), (8, 6485945), (10, 5188756), (20, 2594378), (40, 1297189), (331, 156760), (662, 78380), (1324, 39190), (1655, 31352), (2648, 19595), (3310, 15676), (3919, 13240), (6620, 7838)]