25321588

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 45394664

約数和(自身を除く): 20073076

約数列:

[1, 2, 4, 61, 122, 157, 244, 314, 628, 661, 1322, 2644, 9577, 19154, 38308, 40321, 80642, 103777, 161284, 207554, 415108, 6330397, 12660794, 25321588]

約数ペア:

[(1, 25321588), (2, 12660794), (4, 6330397), (61, 415108), (122, 207554), (157, 161284), (244, 103777), (314, 80642), (628, 40321), (661, 38308), (1322, 19154), (2644, 9577)]