210767560

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{15919}}^1$

素因数の和:16261

約数の個数: 32

約数和(自身を含む): 475689600

約数和(自身を除く): 264922040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 13240, 15919, 31838, 63676, 79595, 127352, 159190, 318380, 636760, 5269189, 10538378, 21076756, 26345945, 42153512, 52691890, 105383780, 210767560]

約数ペア:

[(1, 210767560), (2, 105383780), (4, 52691890), (5, 42153512), (8, 26345945), (10, 21076756), (20, 10538378), (40, 5269189), (331, 636760), (662, 318380), (1324, 159190), (1655, 127352), (2648, 79595), (3310, 63676), (6620, 31838), (13240, 15919)]