213479920

素因数分解:

$2^4\times 5^1\times {\mathrm{631}}^1\times {\mathrm{4229}}^1$

素因数の和:4873

約数の個数: 40

約数和(自身を含む): 497244960

約数和(自身を除く): 283765040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 631, 1262, 2524, 3155, 4229, 5048, 6310, 8458, 10096, 12620, 16916, 21145, 25240, 33832, 42290, 50480, 67664, 84580, 169160, 338320, 2668499, 5336998, 10673996, 13342495, 21347992, 26684990, 42695984, 53369980, 106739960, 213479920]

約数ペア:

[(1, 213479920), (2, 106739960), (4, 53369980), (5, 42695984), (8, 26684990), (10, 21347992), (16, 13342495), (20, 10673996), (40, 5336998), (80, 2668499), (631, 338320), (1262, 169160), (2524, 84580), (3155, 67664), (4229, 50480), (5048, 42290), (6310, 33832), (8458, 25240), (10096, 21145), (12620, 16916)]