31720468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1987}}^1$

素因数の和:2311

約数の個数: 24

約数和(自身を含む): 60005792

約数和(自身を除く): 28285324

約数列:

[1, 2, 4, 13, 26, 52, 307, 614, 1228, 1987, 3974, 3991, 7948, 7982, 15964, 25831, 51662, 103324, 610009, 1220018, 2440036, 7930117, 15860234, 31720468]

約数ペア:

[(1, 31720468), (2, 15860234), (4, 7930117), (13, 2440036), (26, 1220018), (52, 610009), (307, 103324), (614, 51662), (1228, 25831), (1987, 15964), (3974, 7982), (3991, 7948)]