8045888720

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{391337}}^1$

素因数の和:391607

約数の個数: 40

約数和(自身を含む): 18779527944

約数和(自身を除く): 10733639224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 391337, 782674, 1565348, 1956685, 3130696, 3913370, 6261392, 7826740, 15653480, 31306960, 100573609, 201147218, 402294436, 502868045, 804588872, 1005736090, 1609177744, 2011472180, 4022944360, 8045888720]

約数ペア:

[(1, 8045888720), (2, 4022944360), (4, 2011472180), (5, 1609177744), (8, 1005736090), (10, 804588872), (16, 502868045), (20, 402294436), (40, 201147218), (80, 100573609), (257, 31306960), (514, 15653480), (1028, 7826740), (1285, 6261392), (2056, 3913370), (2570, 3130696), (4112, 1956685), (5140, 1565348), (10280, 782674), (20560, 391337)]