20129883944

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{672251}}^1$

素因数の和:672473

約数の個数: 32

約数和(自身を含む): 39931768800

約数和(自身を除く): 19801884856

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 788, 1576, 3743, 7486, 14972, 29944, 672251, 1344502, 2689004, 5378008, 12772769, 25545538, 51091076, 102182152, 132433447, 264866894, 529733788, 1059467576, 2516235493, 5032470986, 10064941972, 20129883944]

約数ペア:

[(1, 20129883944), (2, 10064941972), (4, 5032470986), (8, 2516235493), (19, 1059467576), (38, 529733788), (76, 264866894), (152, 132433447), (197, 102182152), (394, 51091076), (788, 25545538), (1576, 12772769), (3743, 5378008), (7486, 2689004), (14972, 1344502), (29944, 672251)]