20697520

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{883}}^1$

素因数の和:1189

約数の個数: 40

約数和(自身を含む): 48340656

約数和(自身を除く): 27643136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 883, 1172, 1465, 1766, 2344, 2930, 3532, 4415, 4688, 5860, 7064, 8830, 11720, 14128, 17660, 23440, 35320, 70640, 258719, 517438, 1034876, 1293595, 2069752, 2587190, 4139504, 5174380, 10348760, 20697520]

約数ペア:

[(1, 20697520), (2, 10348760), (4, 5174380), (5, 4139504), (8, 2587190), (10, 2069752), (16, 1293595), (20, 1034876), (40, 517438), (80, 258719), (293, 70640), (586, 35320), (883, 23440), (1172, 17660), (1465, 14128), (1766, 11720), (2344, 8830), (2930, 7064), (3532, 5860), (4415, 4688)]