261563344

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{8431}}^1$

素因数の和:8723

約数の個数: 40

約数和(自身を含む): 581335808

約数和(自身を除く): 319772464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 1108, 1939, 2216, 3878, 4432, 7756, 8431, 15512, 16862, 31024, 33724, 59017, 67448, 118034, 134896, 236068, 472136, 944272, 2335387, 4670774, 9341548, 16347709, 18683096, 32695418, 37366192, 65390836, 130781672, 261563344]

約数ペア:

[(1, 261563344), (2, 130781672), (4, 65390836), (7, 37366192), (8, 32695418), (14, 18683096), (16, 16347709), (28, 9341548), (56, 4670774), (112, 2335387), (277, 944272), (554, 472136), (1108, 236068), (1939, 134896), (2216, 118034), (3878, 67448), (4432, 59017), (7756, 33724), (8431, 31024), (15512, 16862)]