649408

素因数分解:

$2^6\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 28

約数和(自身を含む): 1315720

約数和(自身を除く): 666312

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 139, 146, 278, 292, 556, 584, 1112, 1168, 2224, 2336, 4448, 4672, 8896, 10147, 20294, 40588, 81176, 162352, 324704, 649408]

約数ペア:

[(1, 649408), (2, 324704), (4, 162352), (8, 81176), (16, 40588), (32, 20294), (64, 10147), (73, 8896), (139, 4672), (146, 4448), (278, 2336), (292, 2224), (556, 1168), (584, 1112)]