1999004816

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{22031}}^1$

素因数の和:22199

約数の個数: 40

約数和(自身を含む): 3983209344

約数和(自身を除く): 1984204528

約数列:

[1, 2, 4, 8, 16, 53, 106, 107, 212, 214, 424, 428, 848, 856, 1712, 5671, 11342, 22031, 22684, 44062, 45368, 88124, 90736, 176248, 352496, 1167643, 2335286, 2357317, 4670572, 4714634, 9341144, 9429268, 18682288, 18858536, 37717072, 124937801, 249875602, 499751204, 999502408, 1999004816]

約数ペア:

[(1, 1999004816), (2, 999502408), (4, 499751204), (8, 249875602), (16, 124937801), (53, 37717072), (106, 18858536), (107, 18682288), (212, 9429268), (214, 9341144), (424, 4714634), (428, 4670572), (848, 2357317), (856, 2335286), (1712, 1167643), (5671, 352496), (11342, 176248), (22031, 90736), (22684, 88124), (44062, 45368)]