1661191568

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{1549619}}^1$

素因数の和:1549694

約数の個数: 20

約数和(自身を含む): 3266598960

約数和(自身を除く): 1605407392

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 1549619, 3099238, 6198476, 12396952, 24793904, 103824473, 207648946, 415297892, 830595784, 1661191568]

約数ペア:

[(1, 1661191568), (2, 830595784), (4, 415297892), (8, 207648946), (16, 103824473), (67, 24793904), (134, 12396952), (268, 6198476), (536, 3099238), (1072, 1549619)]