20657078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13816522

約数列:

[1, 2, 13, 26, 79, 89, 113, 158, 178, 226, 1027, 1157, 1469, 2054, 2314, 2938, 7031, 8927, 10057, 14062, 17854, 20114, 91403, 116051, 130741, 182806, 232102, 261482, 794503, 1589006, 10328539, 20657078]

約数ペア:

[(1, 20657078), (2, 10328539), (13, 1589006), (26, 794503), (79, 261482), (89, 232102), (113, 182806), (158, 130741), (178, 116051), (226, 91403), (1027, 20114), (1157, 17854), (1469, 14062), (2054, 10057), (2314, 8927), (2938, 7031)]