281916256

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{971}}^1$

素因数の和:1235

約数の個数: 48

約数和(自身を含む): 571209408

約数和(自身を除く): 289293152

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 211, 344, 422, 688, 844, 971, 1376, 1688, 1942, 3376, 3884, 6752, 7768, 9073, 15536, 18146, 31072, 36292, 41753, 72584, 83506, 145168, 167012, 204881, 290336, 334024, 409762, 668048, 819524, 1336096, 1639048, 3278096, 6556192, 8809883, 17619766, 35239532, 70479064, 140958128, 281916256]

約数ペア:

[(1, 281916256), (2, 140958128), (4, 70479064), (8, 35239532), (16, 17619766), (32, 8809883), (43, 6556192), (86, 3278096), (172, 1639048), (211, 1336096), (344, 819524), (422, 668048), (688, 409762), (844, 334024), (971, 290336), (1376, 204881), (1688, 167012), (1942, 145168), (3376, 83506), (3884, 72584), (6752, 41753), (7768, 36292), (9073, 31072), (15536, 18146)]