25478492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 49900032

約数和(自身を除く): 24421540

約数列:

[1, 2, 4, 13, 26, 52, 67, 71, 103, 134, 142, 206, 268, 284, 412, 871, 923, 1339, 1742, 1846, 2678, 3484, 3692, 4757, 5356, 6901, 7313, 9514, 13802, 14626, 19028, 27604, 29252, 61841, 89713, 95069, 123682, 179426, 190138, 247364, 358852, 380276, 489971, 979942, 1959884, 6369623, 12739246, 25478492]

約数ペア:

[(1, 25478492), (2, 12739246), (4, 6369623), (13, 1959884), (26, 979942), (52, 489971), (67, 380276), (71, 358852), (103, 247364), (134, 190138), (142, 179426), (206, 123682), (268, 95069), (284, 89713), (412, 61841), (871, 29252), (923, 27604), (1339, 19028), (1742, 14626), (1846, 13802), (2678, 9514), (3484, 7313), (3692, 6901), (4757, 5356)]