280015405768

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{81971723}}^1$

素因数の和:81971797

約数の個数: 32

約数和(自身を含む): 609869626560

約数和(自身を除く): 329854220792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 81971723, 163943446, 327886892, 573802061, 655773784, 1147604122, 2295208244, 4590416488, 5000275103, 10000550206, 20001100412, 35001925721, 40002200824, 70003851442, 140007702884, 280015405768]

約数ペア:

[(1, 280015405768), (2, 140007702884), (4, 70003851442), (7, 40002200824), (8, 35001925721), (14, 20001100412), (28, 10000550206), (56, 5000275103), (61, 4590416488), (122, 2295208244), (244, 1147604122), (427, 655773784), (488, 573802061), (854, 327886892), (1708, 163943446), (3416, 81971723)]