639736045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{1669}}^1\times {\mathrm{5897}}^1$

素因数の和:7584

約数の個数: 16

約数和(自身を含む): 827371440

約数和(自身を除く): 187635395

約数列:

[1, 5, 13, 65, 1669, 5897, 8345, 21697, 29485, 76661, 108485, 383305, 9842093, 49210465, 127947209, 639736045]

約数ペア:

[(1, 639736045), (5, 127947209), (13, 49210465), (65, 9842093), (1669, 383305), (5897, 108485), (8345, 76661), (21697, 29485)]