328960

素因数分解:

$2^8\times 5^1\times {\mathrm{257}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 791028

約数和(自身を除く): 462068

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 320, 514, 640, 1028, 1280, 1285, 2056, 2570, 4112, 5140, 8224, 10280, 16448, 20560, 32896, 41120, 65792, 82240, 164480, 328960]

約数ペア:

[(1, 328960), (2, 164480), (4, 82240), (5, 65792), (8, 41120), (10, 32896), (16, 20560), (20, 16448), (32, 10280), (40, 8224), (64, 5140), (80, 4112), (128, 2570), (160, 2056), (256, 1285), (257, 1280), (320, 1028), (514, 640)]