25449808

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 51264576

約数和(自身を除く): 25814768

約数列:

[1, 2, 4, 8, 16, 43, 71, 86, 142, 172, 284, 344, 521, 568, 688, 1042, 1136, 2084, 3053, 4168, 6106, 8336, 12212, 22403, 24424, 36991, 44806, 48848, 73982, 89612, 147964, 179224, 295928, 358448, 591856, 1590613, 3181226, 6362452, 12724904, 25449808]

約数ペア:

[(1, 25449808), (2, 12724904), (4, 6362452), (8, 3181226), (16, 1590613), (43, 591856), (71, 358448), (86, 295928), (142, 179224), (172, 147964), (284, 89612), (344, 73982), (521, 48848), (568, 44806), (688, 36991), (1042, 24424), (1136, 22403), (2084, 12212), (3053, 8336), (4168, 6106)]