12928550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 26188800

約数和(自身を除く): 13260250

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 439, 475, 589, 775, 878, 950, 1178, 1550, 2195, 2945, 4390, 5890, 8341, 10975, 13609, 14725, 16682, 21950, 27218, 29450, 41705, 68045, 83410, 136090, 208525, 258571, 340225, 417050, 517142, 680450, 1292855, 2585710, 6464275, 12928550]

約数ペア:

[(1, 12928550), (2, 6464275), (5, 2585710), (10, 1292855), (19, 680450), (25, 517142), (31, 417050), (38, 340225), (50, 258571), (62, 208525), (95, 136090), (155, 83410), (190, 68045), (310, 41705), (439, 29450), (475, 27218), (589, 21950), (775, 16682), (878, 14725), (950, 13609), (1178, 10975), (1550, 8341), (2195, 5890), (2945, 4390)]