30720304

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{28657}}^1$

素因数の和:28732

約数の個数: 20

約数和(自身を含む): 60411064

約数和(自身を除く): 29690760

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 28657, 57314, 114628, 229256, 458512, 1920019, 3840038, 7680076, 15360152, 30720304]

約数ペア:

[(1, 30720304), (2, 15360152), (4, 7680076), (8, 3840038), (16, 1920019), (67, 458512), (134, 229256), (268, 114628), (536, 57314), (1072, 28657)]