873647560

素因数分解:

$2^3\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{10937}}^1$

素因数の和:12945

約数の個数: 32

約数和(自身を含む): 1966871160

約数和(自身を除く): 1093223600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1997, 3994, 7988, 9985, 10937, 15976, 19970, 21874, 39940, 43748, 54685, 79880, 87496, 109370, 218740, 437480, 21841189, 43682378, 87364756, 109205945, 174729512, 218411890, 436823780, 873647560]

約数ペア:

[(1, 873647560), (2, 436823780), (4, 218411890), (5, 174729512), (8, 109205945), (10, 87364756), (20, 43682378), (40, 21841189), (1997, 437480), (3994, 218740), (7988, 109370), (9985, 87496), (10937, 79880), (15976, 54685), (19970, 43748), (21874, 39940)]