20549488

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2939}}^1$

素因数の和:2989

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 23197712

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2939, 3496, 5878, 6992, 11756, 23512, 47024, 55841, 67597, 111682, 135194, 223364, 270388, 446728, 540776, 893456, 1081552, 1284343, 2568686, 5137372, 10274744, 20549488]

約数ペア:

[(1, 20549488), (2, 10274744), (4, 5137372), (8, 2568686), (16, 1284343), (19, 1081552), (23, 893456), (38, 540776), (46, 446728), (76, 270388), (92, 223364), (152, 135194), (184, 111682), (304, 67597), (368, 55841), (437, 47024), (874, 23512), (1748, 11756), (2939, 6992), (3496, 5878)]