64201400

素因数分解:

$2^3\times 5^2\times {\mathrm{321007}}^1$

素因数の和:321023

約数の個数: 24

約数和(自身を含む): 149268720

約数和(自身を除く): 85067320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 321007, 642014, 1284028, 1605035, 2568056, 3210070, 6420140, 8025175, 12840280, 16050350, 32100700, 64201400]

約数ペア:

[(1, 64201400), (2, 32100700), (4, 16050350), (5, 12840280), (8, 8025175), (10, 6420140), (20, 3210070), (25, 2568056), (40, 1605035), (50, 1284028), (100, 642014), (200, 321007)]