217169240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{285749}}^1$

素因数の和:285779

約数の個数: 32

約数和(自身を含む): 514350000

約数和(自身を除く): 297180760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 285749, 571498, 1142996, 1428745, 2285992, 2857490, 5429231, 5714980, 10858462, 11429960, 21716924, 27146155, 43433848, 54292310, 108584620, 217169240]

約数ペア:

[(1, 217169240), (2, 108584620), (4, 54292310), (5, 43433848), (8, 27146155), (10, 21716924), (19, 11429960), (20, 10858462), (38, 5714980), (40, 5429231), (76, 2857490), (95, 2285992), (152, 1428745), (190, 1142996), (380, 571498), (760, 285749)]