19708130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 41126400

約数和(自身を除く): 21418270

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 79, 95, 101, 130, 158, 190, 202, 247, 395, 494, 505, 790, 1010, 1027, 1235, 1313, 1501, 1919, 2054, 2470, 2626, 3002, 3838, 5135, 6565, 7505, 7979, 9595, 10270, 13130, 15010, 15958, 19190, 19513, 24947, 39026, 39895, 49894, 79790, 97565, 103727, 124735, 151601, 195130, 207454, 249470, 303202, 518635, 758005, 1037270, 1516010, 1970813, 3941626, 9854065, 19708130]

約数ペア:

[(1, 19708130), (2, 9854065), (5, 3941626), (10, 1970813), (13, 1516010), (19, 1037270), (26, 758005), (38, 518635), (65, 303202), (79, 249470), (95, 207454), (101, 195130), (130, 151601), (158, 124735), (190, 103727), (202, 97565), (247, 79790), (395, 49894), (494, 39895), (505, 39026), (790, 24947), (1010, 19513), (1027, 19190), (1235, 15958), (1313, 15010), (1501, 13130), (1919, 10270), (2054, 9595), (2470, 7979), (2626, 7505), (3002, 6565), (3838, 5135)]