315808

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 24

約数和(自身を含む): 635040

約数和(自身を除く): 319232

約数列:

[1, 2, 4, 8, 16, 32, 71, 139, 142, 278, 284, 556, 568, 1112, 1136, 2224, 2272, 4448, 9869, 19738, 39476, 78952, 157904, 315808]

約数ペア:

[(1, 315808), (2, 157904), (4, 78952), (8, 39476), (16, 19738), (32, 9869), (71, 4448), (139, 2272), (142, 2224), (278, 1136), (284, 1112), (556, 568)]