20031560

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3361}}^1$

素因数の和:3521

約数の個数: 32

約数和(自身を含む): 45387000

約数和(自身を除く): 25355440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3361, 5960, 6722, 13444, 16805, 26888, 33610, 67220, 134440, 500789, 1001578, 2003156, 2503945, 4006312, 5007890, 10015780, 20031560]

約数ペア:

[(1, 20031560), (2, 10015780), (4, 5007890), (5, 4006312), (8, 2503945), (10, 2003156), (20, 1001578), (40, 500789), (149, 134440), (298, 67220), (596, 33610), (745, 26888), (1192, 16805), (1490, 13444), (2980, 6722), (3361, 5960)]