20102440

素因数分解:

$2^3\times 5^1\times {\mathrm{599}}^1\times {\mathrm{839}}^1$

素因数の和:1449

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 25257560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 599, 839, 1198, 1678, 2396, 2995, 3356, 4195, 4792, 5990, 6712, 8390, 11980, 16780, 23960, 33560, 502561, 1005122, 2010244, 2512805, 4020488, 5025610, 10051220, 20102440]

約数ペア:

[(1, 20102440), (2, 10051220), (4, 5025610), (5, 4020488), (8, 2512805), (10, 2010244), (20, 1005122), (40, 502561), (599, 33560), (839, 23960), (1198, 16780), (1678, 11980), (2396, 8390), (2995, 6712), (3356, 5990), (4195, 4792)]