20787584

素因数分解:

$2^7\times {\mathrm{23}}^2\times {\mathrm{307}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 43432620

約数和(自身を除く): 22645036

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 307, 368, 529, 614, 736, 1058, 1228, 1472, 2116, 2456, 2944, 4232, 4912, 7061, 8464, 9824, 14122, 16928, 19648, 28244, 33856, 39296, 56488, 67712, 112976, 162403, 225952, 324806, 451904, 649612, 903808, 1299224, 2598448, 5196896, 10393792, 20787584]

約数ペア:

[(1, 20787584), (2, 10393792), (4, 5196896), (8, 2598448), (16, 1299224), (23, 903808), (32, 649612), (46, 451904), (64, 324806), (92, 225952), (128, 162403), (184, 112976), (307, 67712), (368, 56488), (529, 39296), (614, 33856), (736, 28244), (1058, 19648), (1228, 16928), (1472, 14122), (2116, 9824), (2456, 8464), (2944, 7061), (4232, 4912)]